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Center Hanger for Double-Eye Springs - 5-7/16" Tall - 3/4" Bolt Hole

Center Hanger for Double-Eye Springs - 5-7/16" Tall - 3/4" Bolt Hole

Item # 115919
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Trailer Leaf Spring Suspension
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Redline Spring Mounting Hardware - 115919
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Center hanger suspends equalizer on multi-axle trailers to provide attachment points for double-eye leaf springs. Lowest Prices for the best trailer leaf spring suspension from Redline. Center Hanger for Double-Eye Springs - 5-7/16" Tall - 3/4" Bolt Hole part number 115919 can be ordered online at or call 1-800-940-8924 for expert service.
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Redline Trailer Leaf Spring Suspension - 115919

  • Hangers
  • Spring Mounting Hardware
  • Double Eye Springs
  • 5-7/16 Inch Tall
  • Tandem Axle
  • Triple Axle
  • 3/4 Inch Diameter
  • Redline

Center hanger suspends equalizer on multi-axle trailers to provide attachment points for double-eye leaf springs.


  • Configured as center hanger
  • Suspends equalizer on tandem- or triple-axle trailers
  • Fits 1-3/4" wide double-eye springs with 9/16" diameter eyes
  • Works with 3/4" diameter bolt (sold separately)
  • Inside diameter: 1-7/8"

Hanger Diagram

115919 Center Hanger for Double Eye Springs - 5-7/16" Tall - 3/4" Bolt Hole

Video of Center Hanger for Double-Eye Springs - 5-7/16" Tall - 3/4" Bolt Hole

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

Video Transcript for Redline Trailer Suspension - Leaf Spring Suspension - 115919 Review

Today we're going to take a look at the 5-7/16" tall center hanger bracket for double eye springs. This center hanger will suspend the equalizer on tandem or triple axle trailers to provide attachment points for you double eye inaudible 00:00:13 springs. It is a weld on installation, attaches to the underside of your trailer frame. This hanger's designed to fit 1-3/4" wide double eye springs and it has 3/4" diameter eyes right here for the bolts. It is designed to work with a 3/4" diameter bolt. We do sell those separately on our website, and they're listed on the product page of this product as a related product. Quantity is just for one hanger. Give you a few spec on this. We're going to measure the overall dimensions, so we'll go the length from this edge to this edge. It's right at 3".

The overall width, outside to outside, is right at 2-5/8". Now the inside width is probably right at 2" and the overall height from the very bottom, let's turn it the way and we'll go from the very bottom to the very top of the bracket, is 6-1/8" tall. When they do describe this hanger they call this a 5-7/16" tall center hanger bracket. Where they get that measure from, the hangers are always measured from the center of the bolt hoe to the top of the hanger. So if we got center to top, that'll get you your 5-7/16" tall bracket. That should do it for the review on the 5-7/16" tall center hanger bracket for double eye springs.

Customer Reviews

Center Hanger for Double-Eye Springs - 5-7/16" Tall - 3/4" Bolt Hole - 115919

Average Customer Rating:  4.8 out of 5 stars   (12 Customer Reviews)

Center hanger suspends equalizer on multi-axle trailers to provide attachment points for double-eye leaf springs.


Great people to work with, very helpful, fast service.


The Hangers I purchased were of excellent quality. They fit the CHANNEL on my boat trailer perfectly. I only encourage customers to check and double check your measurements before final ordering process. I did not allow for a 1/4" for angle iron that was attached to the channel for my axel springs. But that was my fault. I will definitely be ordering parts from this company for all my parts.

Robin M - 07/23/2017


Brackets arrived in perfect condition. Only problem is the tape holding the box together didn't hold. Luckily the brackets were large and didn't fall out. Etrailer will always be my trailer related stuff go to store.


As usual for me, not doing anything standard. Bought this product because I am rebuilding a trailer and upgrading axles to 9000 lbs making trailer GVWR 18000. Trailer always sat high so am adjusting hanger lengths. Still using 9/16 bolts so welded up 3/4 hole on this and then added multiple 9/16 holes to allow adjustability. I wanted the added wall thickness because of these added holes as well as the increased GVWR. Quality part that is working well for me so far. Would have rated higher except for the fact it required the modifications for my application.


Very heavy duty. Fast shipping.


Very heavy duty hanger, better than original. Worked perfectly on our trailer. Timely delivery on all parts ordered. Thanks.


good quality product, fast shipping.


Better then expected.






Ask the Experts about this Redline Trailer Leaf Spring Suspension

  • Parts Needed to Change Boat Trailer to Allow Using Larger Wheels & Tires
    In order to see if you can use larger wheels/tires on your pontoon boat trailer you'll need to check a few things. Checking with the trailer maker, using the trailer VIN, is a good idea too. The manufacturer may be able to offer you some guidance specific to your particular trailer. For new larger wheels to fit your existing hubs they must use the same wheel bolt pattern. I linked an article that will help you confirm which bolt pattern your wheels use. New wheels and tires must also be...
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  • How Thick is Center Trailer Suspension Hanger # 115919
    I measured the thickness of center hanger # 115919 using digital calipers. The steel used to make it is 0.36 inches thick. I have linked a video review of this hanger for you.
    view full answer...
  • Tall Trailer Suspension Hanger with 9/16 Inch Diameter Hole
    We do not carry a hanger with the same dimensions as # 115919 but with a 9/16 inch diameter hole. The closest match is going to be # E4139 which is 4-1/4 inches tall. The metal is approximately 3/16 inch thick.
    view full answer...
  • Recommendation For Lifting A Tandem Axle Boat Trailer For More Clearance
    You can use a longer center hanger for the springs, but you will need to add as much height as possible because the spring deflection won't just mean one inch additional hanger length equals one inch of height lifted. Only changing out the center will not give you the additional height of 1 inch you are seeking. My recommendation is that you use a hanger like the Redline Center Hanger for Double-Eye Springs - 5-7/16" Tall - 3/4" Bolt Hole, # 115919, for all your front and rear mounts...
    view full answer...
  • Will 5-7/16" Tall Center Hanger for Double-Eye Springs Work with 9/16" Bolt
    Even though the 5-7/16" Tall Center Hanger for Double-Eye Springs # 115919 has a 3/4" diameter bolt hole, this is actually designed to work with 1-3/4" wide double-eye leaf springs that install using 9/16" diameter bolts which I think is what you're getting at, so this should work perfectly for your application! If you check out the Tandem-Axle Trailer Hanger Kit for Double-Eye Springs # APT4 you can see where these same hangers are used in a kit that comes with 9/16" bolts so having that...
    view full answer...
  • Troubleshooting Front Equalizer On Triple Axle Trailer Hitting Trailer Frame
    Based on the picture you provided you will need to replace the center hangers on your triple axle trailer with the Center Hanger for Double-Eye Springs - 5-7/16" Tall - 3/4" Bolt Hole # 115919 which is just under 2-1/4" taller than the center hangers included in the # APTT5 you purchased and will give you the additional clearance you need. I included a video of the # 115919 for you to take a look at.
    view full answer...
  • Center Hanger Recommendation to Replace a 5 inch Tall Hanger
    Having the centerline of the hanger sit 7/16 of an inch lower than what you have now will now cause any adverse trailer handling conditions. It would be totally fine. Also, a wet bolt would work great for you would be the Wet Equalizer Bolt with Castle Nut # 126A1.
    view full answer...
  • Raising Trailer Wheel Well Clearance
    At the very least, you want to see at least 3 inches of clearance between the tire and the underside of the fender with the suspension at full load. With the goal of gaining height, best course is to go with taller spring hangers. Keep in mind that the amount by which you increase the height of the spring hangers won't necessarily be the amount the ride height increases, due to the fact that the suspension articulates. Replacing the front and rear hangers as well would be a great idea...
    view full answer...
  • Can Fifth Wheel Trailer Height be Raised If Axles Are Already Flipped
    There are limited ways to add height to a trailer, especially the amount you are looking for. This is especially true because you have already flipped the axles on your Keystone Hornet. The only other way you can gain height is to cut off your current hangers and have longer ones professionally welded on and the longest we carry are the Front/Center/Rear Hanger for Double-Eye Springs - 4-1/4" Tall # E4139 and the Center Hanger for Double-Eye Springs - 5-7/16" Tall # 115919. I have added...
    view full answer...
  • How to Raise a Trailer with Axle Flip Kit Already Installed
    If the loft on your 2014 Jayco Eagle HT 27.5RLTS does not have at least 5-6" of clearance above the bedsides on your 2018 Ram 2500 then you will need to raise the trailer which if adjustments to the 5th wheel hitch, adjustments to the pin box, and flipping the axle did not provide then you can install a of lift block between the spring seat and leaf spring stack. Unfortunately, we do not offer any lift blocks so you will need to source these elsewhere. The other option you have would...
    view full answer...
  • Lifting a Utility Trailer for Compatibility with Lifted Jeep
    You can raise your trailer about 2 more inches using the Correct Track Trailer Alignment and 2" Lift Kit - Single Axle # LC87120. Then you can also add longer hangers if you prefer. We do have long hangers like # 115919 which are the longest option we have. New springs or blocks is not a good option. You will probably need to use a ball mount with a drop to allow you to tow level. I've attached a link to the options and have also attached an article to help you with measuring for fit.
    view full answer...
    Image 1 for
  • Can a Weight Distribution System be Used With a Bulldog Adjustable Coupler BD028585?
    Though the Bulldog Collar-Lok Coupler # BD028585 coupled with something like the Demco 5-Position Adjustable Channel Bracket # DM13867-52, with modifications to make it fit your trailer, would get your coupler raised up, it would not be able to use your weight distribution system. This will be due to the head of the system being far higher than the spring bar brackets on the frame of the trailer. This will cause problems when hooking up and turning and will not allow the spring bars to...
    view full answer...
  • Lifting Jayco 5TH Wheel Camper With Triangular Shaped Leaf Spring Hangers
    As your outer hangers already have a second set of mounting holes for the leaf springs that will raise your trailer you will only need to concern yourself with the center hanger. If the center hanger is also taller with a second hole that will raise your Jayco trailer. If your center hanger is traditional like the # 115919 you can use just the Correct Track Trailer Alignment and Lift Kit # LC87120 to drop the mounting point for the equalizer so that your suspension stays level from front...
    view full answer...
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  • Center Hanger with Larger Drop for Use with EZ Flex Equalizer
    The EZ Flex Equalizer part # K71-652-00 requires a 9/16 inch diameter bolt hole for the center hanger which is not the same as the # 115919 that you referenced. As it has a 3/4 inch diameter hole. So the closest hanger to that with the correct diameter hole is the part # E4139 which has a drop of 4-1/4 inches and a bolt hole diameter of 9/16 inch like you need. There isn't a way to use the EZ Flex with the hanger you mentioned since the hole diameter is too large.
    view full answer...
  • Tandem-Axle Trailer Hanger Kit For Double-Eye Springs Without Hangers
    (2) 7-3/4" Long curved equalizers # TREQE1 (8) 2-5/8" Long shackle straps # 115052 (14) 3" Long x 9/16" diameter shackle bolts with locknuts # 166081 We don't have the # APT5 with the larger hangers or a kit with those specific parts without them, so I listed the parts as you asked. The 7.75 inch length is not a length we carry, they would have to be custom made. The tallest non-slipper spring hanger we carry is the # 115919 at 5-7/16 inches tall.
    view full answer...
  • Recommendations for Raising Trailer to Add Clearance for Larger Wheels
    I do have a few possible options for giving your 2004 Toy Hauler some extra clearance for your larger 29-1/4 inch tires. Replacing the Double-Eye Springs and upgrading to a 5 leaf or 6 leaf spring system will provide very minimal rise on your trailer and may not even be noticeable, especially when the trailer is loaded. Additionally, installing overrated springs will create a rough ride as you mentioned but also put extra stress on different components of your trailer when traveling on...
    view full answer...
    Image 1 for
  • Getting Extra Ground Clearance and Height on a Utility Trailer
    Since there isn't an over/under conversion kit for the 1-3/4 inch diameter round axles you would need to weld new spring seats, such as # TRSS175, to the top of the axle so you can mount the springs on top of the axle. If this alone does not provide the height needed then you will need taller hangers to increase the distance even more. The tallest double-eye leaf spring hangers we have are # 115919 which measure 5-7/16 inches from the bottom of the trailer frame to the center of the spring...
    view full answer...
  • Using Dexter Over-Under Axle Conversion Kit on 1968 Starcaft Pop-Up To Increase Ride Height
    If your springs are currently mounted to the underside of the axle, you can gain some additional height by using an Over-Under Conversion Kit, part # K71-385-00 for a 3 inch diameter axle or # K71-384-00 for a 2-3/8 inch diameter axle. The kit will allow you to relocate the springs so they're mounted to the top of the axle which will gain you about the diameter of the axle in height. If your axle isn't 2-3/8 or 3 inches in diameter, you can gain a small amount of suspension height by going...
    view full answer...
  • Can E-Z Flex Suspension System Replace Trailer With Taller Equalizer
    The E-Z Flex Heavy Duty Rubber Suspension System # K71-652-00 are absolutely an upgrade in terms of ride, they absorb shock in a way that standard equalizers are simply incapable of doing though it is designed to specifically replace Equalizer # TREQ104, which is 2 inches tall and your equalizers are clearly taller. If you did want to use this kit you would need weld on a taller center hanger such as the Center Hanger for Double-Eye Springs - 5-7/16" Tall # 115919 to compensate for the...
    view full answer...
  • How to Get More Height After Axle Flip
    Adding an over/under kit like # K71-385-00 is by far the best way to add lift and realistically it may not be possible to gain another 3 inches. The only other thing you can really do is remove your current hangers and have new ones professionally welded on. The longest option are the 5-7/16" Tall # 115919 so your current hangers would have to be significantly shorter for you to get more height.
    view full answer...
  • Can a Travel Trailer be Lifted no More Than Three Inches Without Conversion Kit?
    There are lift kits for trailers, but only for those that have torsion axles. The Torflex Lift Kit # K71-724-02, will lift your frame by 2-7/8" but is only compatible with #11 Torflex tandem axles with capacities between 4,100 lbs and 6,000 lbs. If you do not have a torsion axle and did not want to flip the axle by using a conversion kit such as the Dexter # K71-384-00, you best bet may be to have a qualified welder remove your current hangers and replace them with taller ones. I have...
    view full answer...
  • 5th Wheel Hitch Recommendation for Sidewinder-Equipped Keystone Raptor 5th Wheel
    The two easiest ways to lift your 5th wheel trailer height so it is level when hitched are to install taller spring hangers on the trailer and to also install axle over-under kits. Both of these will lift the height of the trailer. Our page for trailer leaf spring hangers for triple-axle trailers is linked for you. These include hangers as tall as 5+ inches, such as # 115919. We have axle over-under kits # K71-384-00 and # K71-385-00 which fit 2-3/8-inch and 3-inch diameter axles. These...
    view full answer...
  • What Should the Bolt Diameter be on the Center Hanger to Use with the Curved Equalizer # TREQE34
    If by "perch" you mean center hanger, then you would want the center hole to have a 3/4" diameter like what you find on the hanger part # 115919. This will allow you to use the Shackle Bolt # TRFA73Z916DLNZ or Wet Equalizer Bolt # 126A1 with the Curved Equalizer # TREQE34 and keep the movement at a minimum.
    view full answer...
  • Additional Suspension Parts to Add an Axle to a Tandem Axle Trailer
    The first thing I need to tell you is that mobile home axles are designed for one-time use only by the manufacturers. Because of this replacement parts are nearly impossible to find. I would urge you to switch to regular axles so replacement parts are readily available. I have linked the axles we carry for you. The main problem you might run into when adding another axle is wheel scrubbing. When making turns its likely that the front axle tires will drag on the ground. Also to maintain...
    view full answer...

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