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Trailer Suspension > Leaf Springs > For Double Eye Springs > For 1-3/4 Inch Wide Spring > 2500 lbs > 3 Leaf > 25-1/4 Inch Long > Redline


3-Leaf Double-Eye Spring for 2,500-lb Trailer Axles

Redline Trailer Suspension

ratingratingratingratingrating (324 reviews)


Code:   PR722

Retail:$23.98

Price:$22.95


Shipping Special

Shipping Weight: 10 pounds

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Redline Trailer Suspension - PR722

This 3-leaf double-eye spring is 25-1/4" long x 1-3/4" wide. It is designed for use with 2,500-lb trailer axles.

Features:

  • Flexes to absorb road shock and provide smooth ride
  • Reduces wear and tear on trailer
  • Ensures level ride on bumpy and uneven surfaces
  • Mounts to trailer frame with hangers or a hanger kit (sold separately)
  • Includes nylon bushings


Specs:

  • Number of leaves: 3
  • Spring width: 1-3/4"
  • Eye diameter: 9/16"
  • Spring capacity: 1,250 lbs
  • Axle capacity: 2,500 lbs
  • Dimensions: see table


Double-Eye Spring

Part NumberABC
PR72225-1/4"3"12-5/8"

Leaf springs are an integral part of your trailer suspension system. The double-eye spring is suspended at the ends by hangers that attach to its eye or, in the case of tandem-axle or triple-axle systems, into hangers in the front and rear and an equalizer or equalizers in the center. To determine the type of hangers or hanger kit you need, you must know the specific type of leaf spring you have, as well as your axle diameter and capacity. Depending on the hanger kits used with them, springs can be configured to work for single-, tandem- or triple-axle applications.

Please Note: To ensure proper axle alignment and suspension performance, leaf springs should always be replaced in pairs.



PR722 Trailer Double Eye Spring - 3 Leaf - 1,250 lbs





Video of 3-Leaf Double-Eye Spring for 2,500-lb Trailer Axles


Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.

Video Demo Redline Trailer Suspension PR722
Redline Trailer Suspension PR722 Review

Video Transcript for Redline Trailer Suspension PR722 Review

Today we will be reviewing part number PR722, the 3-Leaf Double-Eye Spring for 2,500-lb Axles.When ordering a new spring for your trailer, there are a few things you do need to know first. This spring measures 25 1/4 inches long by 1 3/4 inches wide. You will need to know the springs half-length which is measured from the center of the eye mount to the center of the leaf bolt here in the center of the spring. This spring has a 12 5/8-inch half-length. One final thing you will need to know is the spring height. To get this measurement, you will draw an imaginary line from the center of the eye mount on either side and using that imaginary line, you will measure from the spring surface giving us our height.

In this case is 3 inches. You will notice the two 9/16 mounting bolt holes are lined with a nylon bushing. This bushing helps to prevent metal on metal contact while the spring is installed on the trailer. And that does it for part number PR722, the 3-Leaf Double-Eyed Spring for 2,500-lb axles.




Customer Reviews

3-Leaf Double-Eye Spring for 2,500-lb Trailer Axles - PR722

Average Customer Rating:  ratingratingratingratingrating4.9 out of 5 stars   (324 Customer Reviews)

This 3-leaf double-eye spring is 25-1/4" long x 1-3/4" wide. It is designed for use with 2,500-lb trailer axles.


- PR722

ratingratingratingratingrating by: Mike T08/29/2013

Is this review helpful?


Once again, etrailer was fantastic. Their website had all the information I needed. Before last week I had no idea what a leaf spring system was, all I knew was that whatever that thing was on the bottom of my camper was snapped in two and I needed to fix it. Did some research on etrailer.com, it walked me through how to take the measurements and what I needed to look for. I took the measurements and found the product that fit my camper. As I always do, I shopped around, and once again, etrailers price was the best by far. I placed the order on a Friday morning and received a very nice email that afternoon from etrailer thanking me for being a repeat customer and notifying me they had expedited the shipping of my products and they left the warehouse that same day. Showed up on my porch the following Wednesday. Amazing customer service! I ordered the leaf springs, ubolts, shackles and shackle bots needed to replace the springs on both sides of my camper. When I opened the box, everything I ordered was in there and looking great. They shipped exactly what I needed, when I needed it at a price that couldn't be matched anywhere. Everything looks great, haven't had a chance to get them on the road yet, but I'm sure it will be top notch when I do. Thanks again etrailer! 97447






- PR722

ratingratingratingratingrating by: jay02/05/2013

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Delivery was very prompt sooner than expected. The information your site provided was spot on. I was able to find a more durable tire for a trailer we are pushing the tire limits. And increase the spring rating by only 500lb fisrt time I've seen off the shelf springs offered in such finite sizes. Though we load within the limits of our trailers this particular unit is at the top of the load range. The slightly heavier parts give me confidents we'll get where we want to go. Thanks we'll be calling again. 65079






- PR722

ratingratingratingratingrating by: Mark H.01/14/2012

Is this review helpful?


Thanks to etrailer.com, I was able to find out that this is the right spring for my trailer. Where before, my trailer was dangerously bouncy, now it rides as smooth as it should. Also thanks to etrailer's video, I knew exactly how to install it. It was very straightforward, and although it took some elbow grease, it wasn't too difficult in the end. Spring works perfectly, just what I needed. 29717






- PR722

ratingratingratingratingrating by: Jim G.08/29/2011

Is this review helpful?


I've just opened the box... they look as advertised and as long as they hold the load stated I'll be happy.... my intention is to never have them past about 1800-2000 lbs so all should be good.... 23037






- PR722

ratingratingratingratingrating by: Tracy04/09/2012

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Quick delivery and very professional operation. Already installed the product, replacing both of my original trailer springs, one of which broke due to metal fatigue. 36645






- PR722

ratingratingratingratingrating by: Strouts Point09/06/2012

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Everytime we have bought parts for trailers the service and quality of parts is excellent. Shipment is speedy and deling with an online company is very easy. 54053






- PR722

ratingratingratingratingrating by: Joseph R.06/23/2011

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Awesome service! They shipped super fast and even upgraded shipping at no cost to me. I will be using them for all my trailer needs. 17731






- PR722

ratingratingratingratingrating by: Dale Wilson04/25/2014

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Super service, great product, I am very satisfied and I recommend etrailer to all my friends and family! 127300






- PR722

ratingratingratingratingrating by: Jim B.11/26/2012

Is this review helpful?


Fit perfectly. Just what we needed and an excellent price. Arrived quickly. Great response and service. 60012






- PR722

ratingratingratingratingrating by: Kellen Hood12/06/2013

Is this review helpful?


Measure twice and order the right size. They fit perfect and now my trailer pulls true. 109369






- PR722

ratingratingratingratingrating by: chuck d.08/12/2011

Is this review helpful?


product was just what i needed - great doing business with you 21718






- PR722

ratingratingratingratingrating by: jeff b.03/08/2014

Is this review helpful?


good quality spring for my new trailer 119903






- PR722

ratingratingratingratingrating by: MH04/24/2011

Is this review helpful?


Works great and was easy to install. 12277




Reviews for other Trailer Leaf Spring :

- PR5

ratingratingratingratingrating by: Ken F.01/04/2012

Is this review helpful?


I just wanted to let you know what a GREAT experience it has been ordering from your company. I have never had a company check up or keep me as informed on what was happening with my order. It is a great relief to know that there are still some companies that care and are not just interested in "a sale." I have attached some pictures of the old springs I took off and the new one's. The old ones were stretched flat with my dump trailer empty. When I put the new ones on it even raised the trailer up at least 4 inches. 29072






- PR4B

ratingratingratingratingrating by: Pete S.06/07/2011

Is this review helpful?


I received the product in time and in excellent condition. The website was easy to understand which helped me find the right part. I will be looking forward to my next project. The old springs are likely from a carriage. 16361






- PR6

ratingratingratingratingrating by: Gary B.08/18/2012

Is this review helpful?


Placed my order on Thursday at 8 AM. Order was received on Friday at 3:30 PM. The lady that took my order was friendly and answered all my questions. I ordered 4 PR6 ,3500 lb. springs with U-bolt kits for 6000 lb . axles. The old set up had 3000 lb springs, 1 main leaf had broken and 2 were almost straight. I had 7/16 difference in center line measurements from side to side. After installing the new springs and U-bolts the center line measurements are within 1/32 side to side. I will tell everyone about your company. Great service and products. etrailer.com is the place to go. 52211






- PR4B

ratingratingratingratingrating by: Scott R.01/17/2011

Is this review helpful?


Positive Experience I recommend etrailer. the price was better than I'd seen locally or online, although it happens that the size and type I needed was a particularly good deal. The service and shipping were surprisingly prompt, and when the box arrived, everything was as advertised. While replacing four leaf springs is about as much fun as shopping for socks, etrailer at least made ordering a positive experience. I actually found the video helpful as well. I've included a picture of what mine actually looked like. A breaker bar is a very handy tool. 5603





Comments

I have a question, Ive. Measured my springs to be 26. 14 to the center of each bolt, however the springs are nearly gone so can I safely say that my springs measurement should be 25 1/4?

comment by: DAVID DYAS - 08/23/2013


1947

If there very old and have spent some time overloaded, they certainly could flatten and end up an inch longer than original. It may be helpful to take some of the other measurements on the the spring, and check the information on the axle to find its weight rating. That will make it significantly easier to find appropriate springs.

Patrick B - 8/24/2013




- pr427

ratingratingratingratingrating by: randy b.02/18/2014

Is this review helpful?


I purchased the 3000# axle springs and all mounting hardware to replace the old ones on my 1963 travel trailer. My trailer no longer leans to the left and goes down the road better than new. I should have done it many year ago. I received my package on time and installation was easy and fit perfect. Thanks Bridget 116826






- 1020

ratingratingratingratingrating by: Larry M.03/22/2012

Is this review helpful?


I finally finished my trailer. The bed measures 8' 4" x 4' 4". Thank you for the excellent service. 34748






- PR6

ratingratingratingratingrating by: Richard A.02/10/2011

Is this review helpful?


If you need trailer parts etrailer is the place to get them. Trying to get all parts needed locally proved to be both impossible(from one vendor) and very expensive. After looking online etrailer seemed very reasonable. Free shipping after $150 also seemed great. So I decided to order wishing I could have found the parts locally, so that I could have the trailer put together by the weekend. After placing the order I was suprised to get an immediate confirmation and a notice of immediate shipment. After ordering the parts late tuesday, I received the parts by lunch time on thursday and finding the parts to be as ordered. Needless to say I am extremely satisfied with etrailer and will be saving the order information for all of my future needs. Thanks etrailer for such professional service. 6980






- PR4B

ratingratingratingratingrating by: Tyler Y.04/07/2014

Is this review helpful?


These leaf srpings were a perfect size replacement for replacing the suspension on my tandem axles boat trailer. My painted steel boat trailer had been exposed to saltwater, so the entire suspension was completely rusted & falling apart. Thanks to the great articles, videos, & documentation here on etrailer, I was able to find exactly what I needed to replace my all leaf springs & hardware, & which measurements to take to ensure I ordered the correct parts. Everything fit perfectly, & there was no need to make a run to a local auto parts store for forgotten parts, thanks to etrailer's articles & complete list of needed suspension components. Everything was a great price, shipped free, & delivered in 3 days. These guys/site is great, will def buy from again. A+++ 124130






- PR4B

ratingratingratingratingrating by: C.J. B10/17/2012

Is this review helpful?


Etrailer personel are polite, knowledgable, helpful, and seem to have a genuine concern for the customer. Keep up the great work, and thank you for your help. 57459





Comments

Still love the stuff. works great for our 32 envision! Thanks again.

cj - 04/17/2014

3623

Thanks for checking in with us and we're glad to hear the springs are holding up. Remember to periodically check the shackle straps for wear, they're the weakest component of the system.

Patrick B - 4/18/2014




- 1724

ratingratingratingratingrating by: Clint F07/22/2013

Is this review helpful?


Excellent, I ordered all the springs and hardware to completely respring my tandem axle Travel Trailer. Everything was perfect, in addition I ordered an above axle lift kit for it, I got about 6 inches of lift as advertised. I pulled the axles out from under the trailer, and welded the seats to the axle, this lift and hardware replacement took my son and I only 5 hours, including a complete wheel bearing pack and seal replacement. Beautiful job, and everything fit perfectly, even the bearing buddies fit perfectly!!!!!!!!!! Plus, I got all the parts in 5 working days, from Illinois to Montana, all with free expedited shipping. Doesn't get any better than that!!!!!!!!!!!!!! 90870






- PR4

ratingratingratingratingrating by: dave . w12/03/2012

Is this review helpful?


the springs worked great i needed a little extra beef under my trailer and were very easy to change over from 3500 lb. springs 60540





Comments

the heavier springs were just what i needed

dave . w - 06/27/2014

5164



- PR3

ratingratingratingratingrating by: John L.07/01/2013

Is this review helpful?


Quality seems very good. Installed with no problems. 86994





Comments

No problems, doing well at the one year mark. Did not realize how badly my ones had sagged until I put these on.

John L. - 07/02/2014

5260



- PR5

ratingratingratingratingrating by: Miguel p10/26/2011

Is this review helpful?


Product was great. arrived early. But it was the wrong size, greatly in part, my fault. I measured the lenght of the leafs instead of the lenght from eye to eye center. Wish during the ordering processes it was explained on how to measure. I have looked at wheels and wheel bolt patern and the instructions for ordering the correct bolt patern there are great. I am sure its probably common knowledge with those that deal with leafs on a regular basis but for those of us that will order this only maybe once in a life time, measuring instructions would have been greatly appreciated. Loved how customer service was always in contact and still is after delivery. 26134






- PR5

ratingratingratingratingrating by: wowchad07/25/2014

Is this review helpful?


I recently bought Dexter E-Z Flex equalizers and was told by multiple forum members, "Since you're unbolting your leaf springs anyways it's cheap insurance to replace your 4 leaf springs with 5 leaf springs" After much online research I found etrailer had the best price when you took advantage of their free shipping special. I could not be happier with their service and FAST shipping!!! 142844






- PR4B

ratingratingratingratingrating by: Bill P06/07/2012

Is this review helpful?


Item shipped VERY quickly. Video tutorials on the web site helped a lot. This leaf spring looks a lot better than the ones originally installed on my trailer. I think eTrailer will be getting more business from me cause from what I saw under the trailer the components the builder used did not look like top-shelf parts. Will probably eventually replace all components with eTrailer ones. Installation would have been easy had the trailer manufacturer not welded the ends of the shackle bolts forcing me to cut the off and then have to go buy new ones. 43225






- PR4B

ratingratingratingratingrating by: Charley S05/11/2014

Is this review helpful?


I have purchased springs, shackles, u-bolts, lights, brakes, and brake drums from etrailer in the past few weeks. Among other items besides the above, I had nothing but excellent service and delivery on everything ordered thru etrailer.com. I was totally happy with all phases of receiving your products, besides all prices were very reasonable. No shipping fees after a certain dollar amount was also a plus. Etrailer.com was fantastic, and I would recommend them to everyone. I will definitely be a long term customer. 129977






- 1724

ratingratingratingratingrating by: Ron H.12/19/2013

Is this review helpful?


This spring was a little more capacity then I needed, but was the proper length. Very good quality. 110599






- PR4

ratingratingratingratingrating by: pat s.04/26/2013

Is this review helpful?


Great products for a good price and fantastic service. I will be using etrailer again. I broke one spring on my tandem axle trailer. After a little internet search I found etrailer. I decided to change all springs(upgraded to pr4)shackles,equalizers,n bolts) total price around $200.00 about 40 percent cheaper than a local trailer repair shop..I ordered it early on a Tuesday and I got the order on Wednesday. Changed out parts on Thursday and back on the road on Friday. Great company to 78018






- PR4B

ratingratingratingratingrating by: Paul C.11/20/2013

Is this review helpful?


Replacing automotive springs on an old utility rental trailer from the 60's. I used these because the old springs where 10 leafs and 35" eye to eye. Still have not set the trailer on the ground but after welding on new leaf attachment hardware these springs slipped on without any problems. The only problem I had was with the old 1 1/2" axle. The Axle had 1/2" alignment pin holes and the springs had 5/8" alignment pin/bolt heads. A sherline lathe fixed that in a few minutes. 107910






- PR427

ratingratingratingratingrating by: Bill T.05/29/2012

Is this review helpful?


The price was right and shipping was fast, and the video on measuring made it easy to be sure I was ordering the right part for my trailer. What's not to like? The only mistake I made was in not ordering all the hardware (U-Bolt kit, shackle bolts, and shackle straps) all at the same time. Although the videos say these parts can be reused, mine were rusty enough that they were really hard to get apart and then back together, even though they were only a year old. 41932






- PR4B

ratingratingratingratingrating by: John A.12/13/2011

Is this review helpful?


Due to a snapped axle spring on my Outback travel trailer, I replaced all four springs and all shackles, bolts and equalizers. I really like the quality, rapid shipping and the fact everything came exactly as ordered! The only thing I would change is to order the greasable bolts for every pivot point rather than just the equalizer pivot. These higher load rated springs should have been on the camper from the factory! I'm a happy camper now! 28058






- 1724

ratingratingratingratingrating by: don s03/18/2012

Is this review helpful?


The one very annoying thing about your service is that when I was shopping there was no way I could change the number of items I wanted. It took 3 days before I could alter the number( it kept increasing to over 12)- I also complained but heard zilch from anyone. It was only by waiting a couple of days before I could order 3 of the springs- I almost cut your company out and ordered it from another outfit. Don S 34306






- PR6

ratingratingratingratingrating by: Jim08/03/2011

Is this review helpful?


We ordered a set of 4 springs. Three matched, one clearly came from a difference source. All seemed to be well built but all contained marked differences in the size and shape of the openings where the spring bushings are inserted. Brass bushings would be seem to be a better choice than the plastic ones. We have covered about 500 miles since they were installed on our camper and they seem to be doing well. 21024






- PR626

ratingratingratingratingrating by: Donald K.07/07/2014

Is this review helpful?


First, I want to thank Adam R. for his help in the selection of the right spring. It installed perfectly within 4 to 6 hours. Everything matched up without any trouble. The biggest problem was getting the old spring off. It took 4 to 5 days. The spring was delivered ahead of the designated delivery date. This is the second item I have order from E Trailer and I have had great results on both items. 139720






- 1020

ratingratingratingratingrating by: Earl B.02/21/2011

Is this review helpful?


THE PRODUCT IS AS LISTED. NOT ONLY DID I GET THE SPRINGS I ORDERED, BUT IT CAME WITH ALL HARDWARE NEEDED FOR INSTALATION. SHIPPING WAS FASTER THAN EXPECTED. I AM TOTAL PLEASED WITH YOUR COMPANY AND WOULD BE PLEASED TO PASS THIS INFORMATION ON TO FRIENDS WITH ANY TRAILER NEEDS!!!!!!!! OR FOR THAT MATTER ANYONE THAT NEEDS TRAILER PARTS. YOUR COMAPANY WAS GREAT TO DEAL WITH. A REAL PLEASURE. 7553






- PR4B

ratingratingratingratingrating by: Smokey B07/06/2013

Is this review helpful?


Springs arrived fast and in good condition. Ordered next size up as the factory springs on boat trailer had started to sag on a 17 foot aluminum boat. These springs were rated for an extra 1000 lbs and within one year of use they have started to level out and the boat is lowering on the trailer. I would get the largest capacity spring possible if you want them to hold up the weight. 87925






- PR4B

ratingratingratingratingrating by: Erich R10/11/2012

Is this review helpful?


After having a spring break found etrailer.com using Google search. Very pleased with service, replacement parts, and price. Received the order sooner than I expected, the communication from them was awesome, and the parts were very good quality. Would highly recommend them to anyone and will order from them again when I work on my other trailer this winter. Very satisfied customer!! 56950






- PR4B

ratingratingratingratingrating by: Brian L.08/05/2013

Is this review helpful?


These are great springs for the price, the dealer wanted twice this much for the same springs, never going there again, word of advice though, MEASURE TWICE order once, my bad all day, I ordered the wong ones, my shackle straps were rotted off so I forgot to account for those, oh well, Etrailer has a fantastic return program, no questions asked and they had my springs to me in 2 days! 93245






- PR4B

ratingratingratingratingrating by: J.A.09/01/2011

Is this review helpful?


Spring was better than I expected. The biggest thing that directed me to purchase this spring from this company was all the very positive reviews I read before making my purchase. I also read some of the tech support questions from other customers, one question actually helped me in my selection of the spring I purchased. For sure I will use this company for any future trailer needs. 23399






- 1724

ratingratingratingratingrating by: brians marina11/10/2011

Is this review helpful?


I ordered from two other sources, as i wasn't sure about the leaf spring dimensions. By far your product exceeded all the other springs, both in quality(thicker) and in price. eTrailers price was half the cost of another one i'd ordered. Thank you for providing a quality item and a very reasonable price. You have my future business. Shipping time was normal. Brian Jewell 26795






- 1020

ratingratingratingratingrating by: Stephan H.03/17/2014

Is this review helpful?


I recommend etrailer.com to everyone I know when they are looking for anything trailer related! The website is unbeatable as are the prices and the personal service you receive is second to none. These springs are excellent and an incredible value. This has been one of the best buying experiences I have had in some time. You simply cannot go wrong with etrailer.com. 120958






- PR4

ratingratingratingratingrating by: Tommy H.03/24/2014

Is this review helpful?


Bought everything to completly rebuild my trailer. All products were good quaility and fit perfectly. The outstanding service was the best part. Never have done trailer work before and I called and talked to support. Got me everything I needed and it was all correct. Upgraded my shipping for free and I still recieved my order quicker than they told me I would. 121914






- PR5

ratingratingratingratingrating by: Charles Taft08/25/2011

Is this review helpful?


Received parts this afternoon and they appear to be very good quality, replaced plastic with bronze bushings in all eyelets and already have one of four installed. 22798






- 1020

ratingratingratingratingrating by: Garnet H.09/12/2013

Is this review helpful?


These replacement springs are of better quality than the origional equipment, especially at the area the origional spring broke. The order was received in less time than it was origionally projected, and the information provided by ETrailer was exceptional. Will definitally use them again for parts and will recommend them to the members of my ATV club. 99581






- PR4B

ratingratingratingratingrating by: Mike R.03/18/2013

Is this review helpful?


Replaced a broken leaf spring on my Econotrailer open deck trailer. This spring does come with new nylon bushings as pictured. I made the mistake of tightening the u-bolt nuts before spring/shackle bolt nuts - the spring then failed to line up with the equalizer. Attaching all bolts loosely first and tightening them alternatively worked much better. 71396






- PR5

ratingratingratingratingrating by: MT Pockets04/28/2012

Is this review helpful?


I just finished installing the leaf springs on my triple axel boat trailer and I'm very satisfied with the result. Shipping was quicker than anticipated… One suggestion is having a complete hardware kit that is galvanized for salt water boat trailers. i.e Shackles, equalizer, and bolts with nylon lock nuts. Thanks again for a Great Product! 38691






- PR5

ratingratingratingratingrating by: Kevin V.07/17/2011

Is this review helpful?


The springs are great! Not only did they go on smoothly, but they got here promptly too! I was very much impressed by the customer care throughout my purchase. I actually received three emails the day I ordered, each from a different person in the chain and updating me on the progress towards shipment. Thanks for the prompt, courteous service. 19569




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Ask the Experts about this Redline Trailer Suspension
Expert Answers about 3-Leaf Double-Eye Spring for 2,500-lb Trailer Axles - PR722Do you have a question about this Trailer Suspension?


  • Dimensions for Spring Hanger Spacing Using the # APTT3 Triple-Axle Hanger Kit on a Boat Trailer
  • The spring hanger mounting dimensions for the Triple-Axle Trailer Hanger Kit, item # APTT3, are as follows. From the center of the hole in the front hanger, to the center of the hole in the center front hanger, the distance should be 29-1/2 inches. From the center of the hole in the center front hanger, to the center of the hole in the center rear hanger, the distance should be 34 inches. And from the center of the hole in the center rear hanger, to the center of the hole in the rear...
    view full answer...

  • Availability of a Leaf Spring with a 25-1/4 inch Length
  • We carry several different double eye leaf springs with a 25-1/4 inch distance between the center of the bushings. Here they are with their corresponding axle capacities: # PR722 for 2,500 lb axles # PR3 for 3,500 lb axles # PR4B for 3,500 lb axles # PR4 for 4,800 lb axles # PR5 for 5,800 lb axles The # 2-1020 that you referenced is the only kit we sell right now that comes with U-bolts and U-bolt plates, but we do sell U-bolts and plates that will fit the above mentioned springs,...
    view full answer...

  • Mounting Center Line and Axle Height Dimensions for Redline Tandem-Axle Trailer Hanger Kit # APT8
  • The axle center line dimension and height from the axles when using the Redline Tandem-Axle Trailer Hanger Kit for Double-Eye Springs, part # APT8, will depend on your axle capacity and which particular springs you are using. My contact at Redneck confirmed this. This hanger kit is intended for use with double eye springs and axles between 2,000 and 7,000 lbs. Your positioning will depend on your choice of springs. The most common spring length for use with this kit is 25-1/4 inches,...
    view full answer...

  • Replacement Trailer Double-Eye Leaf Spring 26 Inches Long
  • When taking double-eye spring measurements you will need to make sure the weight is off of the spring you measure. You can do this by either removing the spring or by jacking up the trailer on the side you want to measure. Over time, a spring can also flatten out a bit so that could be why you are seeing different measurements. But we do have a 26 inch long spring measured from the center of one eye to the center of the other eye. It is # PR626 and it has a capacity of 2,250 pounds....
    view full answer...

  • Would Switching to a Leaf Spring with a Lower Weight Capacity Improve Ride of Boat Trailer
  • Swapping out your 3500 lb leaf springs for the 2500 lb springs would improve your ride, IF (and only if) the weight of the boat, trailer, motor, gasoline, cooler, tackle boxes, more coolers, fishing poles and other gear stowed on it will not exceed the 2500 lb capacity of the springs. If the capacity is exceeded, you will actually experience a rougher ride as the trailer will bottom out. What is your axle rated for? If at all possible, you want to match the spring capacity to the capacity...
    view full answer...

  • How Can I Determine The Weight Capacity Of the Leaf Springs on a 1996 Mobile Scout RFK-30 5th Wheel
  • To determine the capacity leaf springs you have on your 1996 Mobile Scout RFK-30 fifth-wheel trailer you should look on the frame of your trailer for a plate that will have the VIN number, there should also be a listing for the axle ratings too. You can also tell the weight capacity of the axle by measuring the diameter of the axle. A 3,500-lb. axle will have a diameter of 2-3/8 inches and a 6,000-lb. to 7,200-lb. axle will have a diameter of 3 inches. I am sending a link to an FAQ page...
    view full answer...

  • Measurements of the 3-Leaf Double-Eye Spring for 2,500 Pound Trailer Axles
  • The 3-Leaf Double-Eye Spring, # PR722, does not have a front and back, it can be installed with either eye facing towards the front of the trailer. This is what I would call a symmetrical spring. The center point of the spring is 12-5/8 inches from the center of either eye. I have included a link to our FAQ article on double-eye trailer springs for reference.
    view full answer...

  • Replacement Trailer Leaf Springs for a 1999 Thor Skamper Vision Pop-up Camper Model 23L
  • Provided that you are measuring your current springs with the weight off of them (spring removed or trailer jacked up on one side) then spring # PR722 would be the proper replacement. Each spring has a capacity of 1,250 pounds so 2 of them will have a 2,500 pound capacity and would work with a 2,100 pound axle. We do have shackle bolts. There is a steel shackle bolt, 3 inches long, 9/16 inch diameter, # 166081. We also have steel wet shackle bolt # 126B2 that is the same length and diameter....
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  • Trailer Leaf springs # PR4B Recommendation for a 2005 Bri-Mar Open Car Trailer CH16-7
  • For your 2005 Bri-Mar open trailer model CH16-7 with GVWR of 7,000 lbs I would recommend you get 4-Leaf Double-Eye Spring for 3,500-lb Trailer Axles, part # PR4B. These leaf springs are designed for use on trailers with 3,500 lb axles like what you should have on your trailer. You should note that leaf springs have a tendency to stretch out over time, so the fact that these leaf springs are a little bit shorter than your current springs at 25-1/4 inches these would be the correct...
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  • Determining the Leaf Spring Drop From an Empty Trailer to a Fully Loaded Trailer
  • The drop that you will experience with the 3-Leaf Double-Eye Spring for 2,500-lb Axles, # PR722, from a trailer at zero load to full load is going to be 1-1/2 inches. A few things to note with a fully loaded trailer is that you will want at least 3 inches of clearance above your tires and 2 to 2-1/2 inches of clearance from the top of your axle to the bottom of the frame where the leaf spring hangers are welded. You will also want to get the correct hanger kit for the leaf springs...
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  • How to Determine 3 Leaf Trailer Spring Capacity When all Dimensions are the Same for Two Springs
  • Determining the difference between two sets of springs that have different capacities can be difficult at best, especially if the spring has seen use. If you are talking about new springs that have not been exposed to the elements for a period of time, then our springs come in with the part number either painted on the top of the spring (concave side), or stamped into the band that is wrapped around the leafs. In the case of the # PR3 and # PR722 spring ours come in with paint on the...
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  • How to Determine the Correct Replacement Leaf Springs for a 1987 E-Z Load Trailer
  • To be certain of the correct double eye leaf spring for your trailer, I will need to know the capacity of the axle itself. The axle capacity should be listed on a sticker or plate on the trailer frame. Add to that information some specific measurements, and we will be able to get you the correct leaf spring. The measurements we need can be found on the diagram on the product page for Spring # PR722 after the specs. The weight should be off of the spring when you take the measurements....
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  • Replacement Leaf Spring Recommendation for a 2008 Interstate Enclosed Trailer
  • Yes, I would strongly recommend you replace all four at the same time. We always recommend they all get replaced at the same time to be safe. Since your trailer capacity is 7,000 lbs and your worn out springs are 26 inches long the correct replacement spring for you would be the Redline Spring part # PR3. Four of these will have 7,000 lbs of capacity and they are 25-1/4 inches long so they will match up perfectly for you. Springs tend to flatten out over time and get longer, so your...
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  • What is the Correct Distance Between the Spring Hangers When Using a PR722 Leaf Spring
  • The distance of 25-5/8 inches would be the correct distance to have between the spring hangers. You have to consider that as the the leaf spring compresses from the weight of the trailer it will flatten out and the overall length of the spring will increase so that the shackle will face the right direction.
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Info for this part was:


Expert Research:
Michael L

Expert Research:
Michael H

Expert Research:
Jameson C

Expert Research:
John H

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