Enclosed Trailer Ramp Spring - Dual Spring, 81" Wide

Enclosed Trailer Ramp Spring - Dual Spring, 81" Wide

Item # ERS120D81

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Our Price: $238.57

Enclosed Trailer Parts

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Shipping Weight: 27 lbs

Arrives before Christmas with Ground or Free Shipping.
Quantity: 
In Stock
ERS120D81 - Ramp Door Springs M-3 Enclosed Trailer Parts
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Call 800-298-8924 to order M-3 enclosed trailer parts part number ERS120D81 or order online at etrailer.com. Free expert support on all M-3 products. Guaranteed Lowest Price and Fastest Shipping for Enclosed Trailer Ramp Spring - Dual Spring, 81" Wide. Enclosed Trailer Parts reviews from real customers.
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  • Reviews (59)
  • Q & A (52)
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  • Used (2)
  • Why etrailer?

M-3 Enclosed Trailer Parts - ERS120D81

  • Doors
  • Ramps
  • Door Hardware
  • Ramp Hardware
  • Ramp Door Springs
  • Dual Ramp Spring
  • M-3
  • 81 Inch Long


Ramp door spring is designed for enclosed trailers. The system features a dual drum and dual cable to prevent the ramp door from free falling in the event one cable is accidentally cut. The universal mounting bracket has two 3/8" holes that allow the installer to bolt the spring to the rear header. Welding the bracket is also an option.


  • Includes all hardware necessary for installation except for mounting bolts
  • Cable included
  • 81" wide
  • Spring capacity: 120 lbs
  • Quantity: 1 assembly
    • Has 2 springs on 1 assembly
    • Does not come as a pair

Warning: The installation instructions for this product are recommended for individuals who have experience winding torsion springs. If you have not worked with a torsion spring system before, we recommend contacting a local garage door company to install this system.



ERS120D81 Enclosed Trailer Ramp Spring - Dual Spring, 81" Wide








Customer Reviews

Enclosed Trailer Ramp Spring - Dual Spring, 81" Wide - ERS120D81

Average Customer Rating:  4.7 out of 5 stars   (59 Customer Reviews)


- ERS120D81
by:

Everything fit perfectly and worked as intended 715053



- ERS120D81
by:

Very easy to order, Quick deliver, the parts arrived in good condition even thogh the boxes was ripped open during shipping, I have not had time to install it yet o . so no picture is available. 704168



- ERS120D81
by:

Exactly what it says it is. Looks like a nice piece. Easy installation. Best deal on the internet. I searched for probably hours trying to find a better deal and you wont. They didnt have it in stock but ended up shipping it straight to me and I had it before they thought I would. Great Service. Very easy to work with. Will always come here and look for future trailer parts. 487279



- ERS120D81
by:

Yes, I know it is recommended for personnel whom have utilized a torsion spring before, but I am definitely on the stubborn side. Before I could contact my local garage door guy, I pulled this out of the box to see if I needed to make a modification. So, I shortened the bar. I then noticed that the old one had to come down. Then I happened to notice that the placement of the plate almost lined up to the old one. Two minutes later, I was too far in the installation to not finish this job myself. Total time it took me was 1hr45min. 15 of those minutes were spent unwinding the cables because I didn't read the directions to put it on with the ramp down. Other than that, it was a breeze. Customer service was also the most amazing experience ever. I called to make sure I was ordering the right part from Pace and they informed me that my trailer was to old and to go to a recommended dealer 30 minutes away. etrailers crack staff told me to go out and measure my trailer twice, to make sure it would fit. Voila, 2 minutes later, i knew I had the right part. 480071



- ERS120D81
by:

Works great on the ramp door that I built for a storage shed to keep golf cart in. 575900



- ERS120D81
by:

Directions can be a little confusing, since I installed this on a she door, not a enclosed trailer. Left and right are painted and all was clear except on which way cable winds on drums, according to rep you wind it thru front unlike a garage door. Called to confirm because drums are labeled r and l but are reversed as your installing it,which prompted a call call. 506038


Comments

Thanks for the follow up Brandon. This system is set up so that when you are in the trailer or shed in your case looking out of the down door, the end with the black cable drum and the red winding cone should be on your left. If you are not comfortable or experienced with the installation of torsion springs, it is highly recommended that a local garage door company complete the installation.

-- Rachael H - 05/31/2018

39118

- ERS120D81
by:

The mounting plates are adjustable so there adjusted to fit my Pace 16' trailer perfectly. I had to install the cable pulleys backwards from what the directions called for and with the set screws facing the outside walls as well. I installed mine with the door closed not open against what the directions say as well. When you put some tension of the springs with the door closed you must stretch out the springs some before using the set screws. If the springs are not stretched out some the door will barely open and stop because the springs will have to room to turn and expand. The real trick is getting the cables wound up even and tightly. I needed my parts ASAP so I paid next day air which was very cheap for such a large part. 190413



- ERS120D81
by:

First off, Deborah was awesome to deal with and had the ramp door spring shipped super fast. Thank you! I had never installed a torsion spring and this one took me two hours, including removal of the old one off a Pace cargo trailer. You might need to cut off part of the tube ends to fit your application. I put a grinding wheel on my skilsaw and chopped off 3 inches from each end. I used my existing mounts on the header and so I removed the ones on the new spring assembly...4 bolts. The mounting plates on the assembly are easy to slide to fit my application. Installation onto the header was very quick and easy. Again, four bolts that are a bit soft and easy to strip...I used my existing hardened bolts that were exact match in every respect...only harder alloy. The cables came next. I suggest using existing hardware if it's in good shape. The provided pins and cotter pin mount left too much slop at the ramp. Good bolts and a good locking nut was what I used and allowed for plenty of relaxed movement without compressing the eye of the cable end. Vise grips come in handy when rolling the cable on the drums as you'll want to keep the bar assembly from moving while loosening the drums to roll up the slack of the cables...tighten the two set bolts on each drum and you're ready to start winding the springs. Make sure the BLACK drum is mounted to your left while looking out from inside the trailer or the entire assembly will need to be flipped. I used some rebar for winding rods and ground them down a touch to fit easily inside the cavities of the spring winder. This worked well for me, but the proper winding rods are no doubt safer and should be used or simply get a professional garage door company to do the winding part and balancing for safety reasons. Once wound according to the instructions, lock the set bolts onto the rod and you can remove the winding rods. I used the top of my trailer to help hold the rod while tightening the set bolts...all the while holding another rod in the cavity for safety. From there, you will want to readjust your drums on the cables to get an equal amount of tension on each cable. One cable will likely be a lot tighter while the other relaxed upon rasing the ramp. With the door up and closed, loosen the drum set bolts on the LOOSE cable drum and spin it to get a tighter cable and lock the bolts back into place. Raise and lower the door a time or two and go back into the trailer with the door closed and readjust the drum that has cable slack until they are fairly equal. That was it and other than the appeals for safety around the entire process, it was easy to do. Unless you are used to working around stuff like this, I think having a garage door company wind the springs and adjust the drums would be money well spent to avoid any potential injuries. I doubt it would cost much because that part goes pretty quickly and they would have the experience to do it in about 15 minutes or so. 128509



- ERS120D81
by:

I installed this on a heavy fold-down ramp door that I made for hauling my Jeep in an enclosed trailer. The ramp was so heavy that I couldn’t hardly lift it by myself. I bought the dual spring model because I thought I needed it, but I don’t. One spring is all I needed. I can now lift the heavy ramp door with one hand. 728987



- ERS120D81
by:

Awesome exactly what I needed!! Ill be ordering a lot more. As they are the key element of my business!! 721486



- ERS120D81
by:

Good product. Wish it had come sooner. 719986



- ERS120D81
by:

Works just like the original. 716533



- ERS120D81
by:

Great easy to install 607948



- ERS120D81
by:

Good product and easy to install. I can now lift the ramp on my trailer with one hand. 603399



- ERS120D81
by:

I received it in a short time but haven't installed it 600309



- ERS120D81
by:

Well so far it looks right but have not installed it yet 581546



- ERS120D81
by:

Fast and accurate description. Great job! Thank you! 563076



- ERS120D81
by:

Very good ---went on fast, cut a little bit on the end to on header, came in fast just in time door was getting heavy, Im a landscaper 552767



- ERS120D81
by:

fast shipping fit correctly works great would buy again 543393



- ERS120D81
by:

great product , fast delivery ,easy to install !! 541943



- ERS120D81
by:

PROMPT SHIPPING, EASY INSTALL, WORKING GOOD 515866



- ERS120D81
by:

All items worked as advertised and was easy to install. 482972



- ERS120D81
by:

Got exactly what was described. Fast sh ipping. 471903



- ERS120D81
by:

Product works great after having it installed now for a year, definitely better than the oem part in which it replaced. Very easy to install and maintain. 468854


Comments

Great

Tim - 01/23/2019

48810

- ERS120D81
by:

Bought this spring assembly for my 7x14 enclosed trailer ramp door. Delivery was quick and it fit perfect. Its been a full year and still working well. If i remember correctly a friend and I installed it in about an hour. 465127



- ERS120D81
by:

Great product. Was exactly what I needed and the ordering was painless. Was here before I actually needed it. Thanks for amazing service. 437847



- ERS120D81
by:

Fast shipping. 428150



- ERS120D81
by:

Easy to follow instructions, first time for me to install one of these but it was really easy. 417806



- ERS120D81
by:

Can't say enough about customer service.....shipped as promised and product was quality. Thank you! 414946



- ERS120D81
by:

Works great for my barn door ramp. 413548



- ERS120D81
by:

Best service ever, I was packing for an a tv trip and the spring broke as I closed the rampthree nights before leaving. Trailer saved my vacation big time by shipping quick and the video really helped a lot. Thanks etrailer 411977



- ERS120D81
by:

This product was confirmed as delivered but was NOT DELIVERED. 404675


Comments

Hello,Unfortunately this is a problem with UPS. Our customer service team has filled for a lost package on your order and they will update you on the progress of the search.

-- Sarah H - 07/14/2017

26102

- ERS120D81
by:

Right product and great free delivery time 391952



- ERS120D81
by:

I've order many items from this company. First website is perfect very quick,also every item u may need with a item your ordering is shown (such trailer wiring connectors and so on) shipping is fast as we can ever ask. And all information for products is available including wiring diagrams and ext. Hands down great company.Just keep it up!! 366978



- ERS120D81
by:

Products arrived as described, on time and undamaged. 350171



- ERS120D81
by:

Great prices and SUPER FAST SHIPPING!!! Thank you!! 339947



- ERS120D81
by:

I reinforced the rear ramp of my aluminum trailer and needed a bigger torsion spring set to compensate for the extra weight. The information I found on etrailer.com made it easy to choose exactly what I wanted. The best part was the shipping speed. I ordered it Monday and received it by Wednesday. Not only was it cheaper than the local trailer supply it was quicker. Easy to install and works like a charm. 338107



- ERS120D81
by:

I ordered the assist ramp lift because my ramp door was too heavy for me to lift by myself. After installing the assist lift correctly a 12 year old can lift the ramp door using only one hand. I recommend this product and the price is very reasonable for what you get with this company. 337911


Comments

Im very happy I purchased the assist ramp lift. It is still working great after a year of using it.

Charlotte P - 02/02/2018

34154

- ERS120D81
by:

Good product for the price. Hard to adjust initially and it constantly needs adjusting. The spring tension loosens up after about a dozen cycles. It does work good and the quality of the rest of the assembly is good. Would buy the product again. 335493



- ERS120D81
by:

Product came in a timely matter through UPS. Installed it with no problem at all but you MUST read the instructions first so that you know what you're doing. Turned 38 quarter turns and then a few more (4) after that. Not sure if I should do a few more turns because the ramp door still takes two hands to close. 330952


Comments

Thanks for your review and your business, Jim. We recommend contacting a local garage door company to install this system.

-- Laura E - 01/18/2017

22247

- ERS120D81
by:

Perfect spring for my new ramp door. It was an easy install that was completed in about 20 minutes. 317237



- ERS120D81
by:

This is a very good door opener at the best price I could find and very fast shipping thanks Buddy D 314254


Comments

Still working great

Buddy D - 11/06/2017

30584

- ERS120D81
by:

All looks good. Delivered on time. It appears to be a solid product. Will install in a few weeks and have it working. 286786



- ERS120D81
by:

Very good quality, arrived quickly,works great on my 6 ft ramp door 274517



- ERS120D81
by:

Item fit perfect and has function flawlessly after I installed it !! Thank you Etrailer !! 269066


Comments

Excellent no issues

Marty B - 07/07/2017

25729

- ERS120D81
by:

Great stuff. Will be ordering more for all my trailers 255292



- ERS120D81
by:

Worked great thank 250244



- ERS120D81
by:

Works great 241381



- ERS120D81
by:

great service good product 233015



- ERS120D81
by:

This enclosed trailer door ramp spring pulley system is great. It is so smooth unlike the one that came wiyh my pace American trailer. Doesn't grind or squeek. Does exactly what it is supposed to for an outstanding price! Trust me, I did the research. I had to install by myself and it wasn't bad at all. Should have read the directions first so I had it turned around the wrong way. Lol. But it was a 2 minute fix to get back on track. I really am glad I found this. Definitely would recommend. 232092


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Ask the Experts about this M-3 Enclosed Trailer Parts

Do you have a question about this Enclosed Trailer Part?


  • Ramp Springs Compatible With 1982 Circle J 2-Horse Trailer
  • I have a couple solutions for you, but we don't carry the exact springs you are referring to. I recommend the Ramp Spring - 2K Torque for 1-1/2" Shaft - Right Hand # RS16933RH and Left Hand # RS16933LH. These springs are 11 inches long and have a 1-1/2 inch shaft and are 2-1/2 inches wide. The inner diameter of the coil is 1-1/2 inches. Another option is to use the Enclosed Trailer Ramp Spring - Dual Spring, 81" Wide # ERS120D81. I've attached a photo with all of the measurements...
    view full answer...

  • Recommended Ramp Torsion Spring for 82-Inch Wide Enclosed Trailer
  • The best size of trailer ramp spring for your trailer is going to be the 81-inch dual torsion spring # ERS120D81. This dimension is the end-to-end length as you'll see in the video. This unit consists of two torsion springs on one shaft and it has a capacity of 120-lbs. This spring can be bolted or welded to the trailer header and it comes complete with dual cables and hardware. Please note that this spring is intended to be installed by someone who has experience with torsions springs....
    view full answer...

  • Recommended Gate/Ramp Assist and Hinge for Trailer Build
  • The 2K Torque Ramp Spring # RS16933RH is an industrial strength spring. It is designed for up to 90 degrees of deflection, but most people by hand can cause no deflection at all. It is designed to be used with the LH # RS16933LH, and is for heavy ramps or doors like in the attached photo. I would assume it is too strong for your application based on your wording. You may want to consider a different style spring like the Enclosed Trailer Ramp Spring - Dual Spring, 81" Wide # ERS120D81...
    view full answer...

  • Replacement Torsion Spring Cables for Enclosed Trailer
  • We do offer cables alone for enclosed trailer ramp torsion springs. Part # CAB1-8CB150 is a pair of 150-inch cables. We also offer replacement right and left drums, parts # DRUM-M-3RH and # DRUM-M-3LH, respectively. The installation instructions for this product are recommended for individuals who have experience winding torsion springs. If you have not worked with a torsion spring system before, we recommend contacting a local garage door company to install this system.
    view full answer...

  • Recommendation for Enclosed Trailer Ramp Springs for a 7 Foot by 14 Foot Enclosed Trailer
  • The system that will probably work best for you is the Enclosed Trailer Ramp Spring - Dual, 81 Inches Wide, # ERS120D81. I went out to the warehouse and measured the distance between the mounting brackets. It is 64-1/2 inches from bolt hole center on one bracket to bolt hole center on the other bracket. The overall length is 81 inches. Since you have a 7 foot (84 inch) wide trailer, the 81 inch assembly should be a good fit. An assembly that measures 96 inches wide will be too long to...
    view full answer...

  • Recommended Ramp Door Spring for 8 Foot Wide Enclosed Trailer
  • You'll want to choose a spring that's the same width as the ramp door. I'm afraid that the # ERS120D81 you mentioned would be too narrow. You'd want to use #CB250D96SHD, which is 96 inches wide. You'll have to take about 2 inches off each side of the pipe, but this would be your best bet. We HIGHLY recommend having the spring installed by somebody who's experienced with torsion springs. Tensioning the spring is a dangerous job that shouldn't be undertaken by somebody who's not familiar...
    view full answer...

  • Rack Em Tailgate Lift Assist Compatibility with Horse Trailer Ramp
  • If you have an interior rail to attach to, you could uses the Rack'Em Double Barrel Utility Trailer Tailgate Lift Assist w/ Chain - 200 lbs # RA-27C. The only thing to consider with this is that the unit will be either right in front of or behind your horses Most horse trailers utilize an enclosed trailer ramp spring like the Enclosed Trailer Ramp Spring - Dual Spring, 81" Wide # ERS120D81. These are more like garage door springs, and use cables to lower and raise the ramp. It is...
    view full answer...

  • Choosing/Sizing the Correct Trailer Ramp Spring for a Ramp Door
  • When selecting ramp springs for a trailer ramp, you will want to know the diameter of your hinge pin and how much space you have available in the hinge. A typical horse trailer or utility trailer ramp uses 3/4 inch hinge pins and would require two ramp springs with a 3/4 inch inner diameter. The ramp springs that we carry fit 1-1/2 inch diameter hinge pins and are designed for use with heavy-duty steel ramps like those on equipment trailers or car haulers. The spring slips over the...
    view full answer...

  • Choosing the Correct Ramp Springs for Enclosed Cargo Trailer
  • The springs you mentioned are designed for use on ramps that you'd typically see on a heavy equipment trailer. They're way too stiff to be used on a trailer door. The correct springs for your application will depend on what you are using the ramp for and the width of the trailer. The Ramp Springs you are asking about are best used for heavyweight steel doors on a horse trailer or for an enclosed car trailer. If one man can lift the ramp, a more lightweight option like a torsion spring...
    view full answer...

  • Can 81-Inch Enclosed Trailer Ramp Spring # ERS120D81 Be Cut Down in Length
  • According to my contact at Redneck Trailer Supply the M-3 Enclosed Trailer Ramp Spring # ERS120D81 can be cut down to a reduced length. We also offer a 66-inch single-spring version, part # ERS80S66, which has an 80-lb capacity. Both kits include all hardware necessary for installation except for mounting bolts which you will supply. Please see the linked video. The installation instructions for these products are recommended for individuals who have experience winding torsion springs....
    view full answer...

  • Ramp Door Spring for 72" Wide Door on Wells Cargo Trailer
  • What you can do is use Enclosed Trailer Ramp Spring - Dual Spring, 81" Wide # ERS120D81 which will work for doors which go down to 62 inches wide. You can take a look at the video review of this product I've added for you.
    view full answer...

  • Enclosed Trailer Ramp Dual Spring for 72 Inch Wide Door
  • You can use the 81 inch ramp spring # ERS120D81 if you would like. The springs and pulleys are held in place with set screws, so you can move the springs closer together and tighten the set screws down to keep the springs and the pulleys in place. I spoke with the manufacturer, M-3, and they said that this spring will work well on your 72 inch wide door. M-3 said the spring will work on doors down to 62 inches wide. You will want to position the pulleys as far apart as possible without...
    view full answer...

  • How to Pick Out Replacement Cable Length for Trailer Torsion Ramp Spring
  • You would want to measure from the bottom of the ramp door all the way up to the spring above the door frame when it is open to determine the minimum length cable you would need for your spring. We do offer cables alone for enclosed trailer ramp torsion springs. Part # CAB1-8CB150 is a pair of 150-inch cables. The installation instructions for this product are recommended for individuals who have experience winding torsion springs. If you have not worked with a torsion spring system...
    view full answer...

  • Recommended Ramp Door Spring for 6x12 Enclosed Trailer
  • When selecting ramp springs for a trailer ramp, you will want to know the diameter of your hinge pin and how much space you have available in the hinge. A typical enclosed trailer ramp uses 3/4 inch hinge pins and would require two ramp springs with a 3/4 inch inner diameter. The ramp springs that we carry fit 1-1/2 inch diameter hinge pins and are designed for use with heavy-duty steel ramps like those on equipment trailers or car haulers. The spring slips over the hinge pin and requires...
    view full answer...

  • Replacement Springs for Ramp Door on Continental Cargo Enclosed Trailer
  • I believe you're referring to the # RS16933LH spring, is that correct? These springs aren't meant for an enclosed trailer with a ramp door, they're meant for the very heavy steel ramps you'd typically see on the back of a trailer used to haul heavy equipment like bulldozers. Your best bet would be to use a ramp spring like what you're already using, like part # ERS120D81. Installation of springs like these can be extremely dangerous, due to the tension stored in the spring. If you...
    view full answer...

  • 1990 Kingston Trailer Ramp Lift Assist Options
  • We have a couple options for trailer ramps springs. The first one will work great if your ramp rides on a 1-1/2 inch shaft. For that you would want the Ramp Spring - 2K Torque for 1-1/2" Shaft - RH # RS16933RH or # RS16933LH. Or we have ramp springs like the Enclosed Trailer Ramp Spring - Dual, 81" Wide # ERS120D81, this spring installs like a garage door spring. There is a lot of tension, so you want to make sure it is installed by someone who knows how to compress these springs...
    view full answer...

  • Dimensions For Trailer Ramp Spring On 18 Foot Haulmark Trailer
  • You will need to measure to be sure, but I believe the Enclosed Trailer Ramp Spring - Dual Spring, 81" Wide # ERS120D81 will fit your 18 foot Haulmark Trailer and I've included the dimensions of this hit for you. Each spring is 22-1/2 inches long and 2-3/8 inches in diameter.
    view full answer...

  • Enclosed Trailer Ramp Spring Recommendation for Raising a Shed Door
  • I believe your best option would be the Enclosed Trailer Ramp Spring # ERS120D81. This spring is 81 inches in length and has a capacity of 120 lbs so I believe it would be better suited for the job than the longer spring with a lower capacity # ERS80S96 that you referenced. I also spoke to my contact at M-3 and he informed me that the # ERS120D81 has plenty of capacity to lift the one side of the 125 lb door. This product should help your customer raise and lower the heavy door, if...
    view full answer...

  • Trailer Ramp Spring Recommendation for a 66 Inch Wide Door
  • As you mentioned, we do offer the Enclosed Trailer Ramp Spring - 81 Inch Wide, # ERS120D81. This ramp spring needs a minimum of 56 inches in order for the drums and cables to wind properly. With your rear ramp door being 66 inches wide, this ramp spring would work for your trailer. The weight capacity is 120 pounds. I pulled the Enclosed Trailer Ramp Spring - 96 Inch, # ERS160D96, from our warehouse and also spoke with my contact at M-3 to see if there was any way that this would work...
    view full answer...

  • How to Determine Correct Ramp Spring for Installing a Ramp on a Storage Shed
  • Choosing a ramp spring for your shed door requires you to know the weight and size of the ramp to ensure the cable is long enough and that the system has the required lifting capacity. A system like the 66-inch Redline Enclosed Trailer Ramp Spring # ERS80S66 has an 80-lb capacity and a 12-1/2-foot cable length. The similar 81-inch dual-spring # ERS120D81 has a 120-lb capacity. All ramp springs can be seen on the included link. The installation instructions for this product are recommended...
    view full answer...

  • Width of Doors That Dual Spring Enclosed Trailer Ramp Spring Works With
  • I am not 100 percent sure what you mean be fitting the same place as the 66" Enclosed Trailer Ramp Spring ERS80S66 but I can tell you the 81" Dual Spring Enclosed Trailer Ramp Spring # ERS120D81 will work on doors down to 62 inches wide so if your door is within that range it will work for you.
    view full answer...

  • Overhead Ramp Spring for Rear Door of 2005 Featherlite 1648 Snowmobile Trailer
  • The spring needed will depend on the inside width of the trailer and the weight of the door. I looked online found that the Featherlite 1648 is 8 feet 6 inches wide. I'd recommend the # CB250D96SHD from M-3 Industries. The assembly is 8 foot long, and has a 250 lb capacity, which should work well for your trailer. Unless you have experience installing torsion springs, please leave the installation of this spring to a professional.
    view full answer...

  • Enclosed Trailer Ramp Door Spring Kit for 8x16 Pace Cargo Trailer
  • It looks like the best option is going to be dual-spring system # ERS120D81. It is 81 inches wide total but you may have to fabricate something for the brackets to attach to since they are 64-3/4 inches apart on center. This system has a capacity of 120 pounds. The installation instructions for this product are recommended for individuals who have experience winding torsion springs. If you have not worked with a torsion spring system before, we recommend contacting a local garage door...
    view full answer...

  • Ramp Spring Recommendation for Rear Ramp of Toy Hauler
  • You could install a ramp spring like the part # ERS160D96 at the top of your ramp opening to assist the ramp in lifting and lowering. That part number is for a 96 inch wide assembly but if you needed a smaller one we have the part # ERS120D81 which is 81 inches wide. These are torsion spring style assists that would need to be wound by a professional.
    view full answer...

  • Adjustability of Enclosed Trailer Ramp Spring
  • I spoke with my contact at M-3 who said the ramp spring shaft can be cut down to a maximum of 62 inches and you would still have room to wind the springs. The shaft is made of steel tubing so the proper saw or power saw blade would cut through it. Be sure to get a straight cut and file down the rough spots. The installation instructions for this product are recommended for individuals who have experience winding torsion springs. If you have not worked with a torsion spring system before,...
    view full answer...

  • Ramp Spring Recommendation for Cargo Trailer with 75 inch Wide Ramp
  • You would need to use the part # ERS80S66 that you mentioned instead based on the dimensions you listed. The longer one would not have 6 inches that could be trimmed off. The part # ERS80S66 still has an 80 lb capacity though so it will help considerably still.
    view full answer...

  • How is M3 Enclosed Trailer Ramp Spring ERS120D81 Measured
  • The M3 Enclosed Trailer Ramp Spring # ERS120D81 is 81-inches wide as measured tip to tip; this is noted in the linked video at the :45-second mark. The installation instructions for this product are recommended for individuals who have experience winding torsion springs. If you have not worked with a torsion spring system before, we recommend contacting a local garage door company to install this system.
    view full answer...

  • Ramp Spring Recommendation for a 2002 Range Renegade Enclosed Aluminum Snowmobile Trailer
  • I have a solution for you, but it won't work with the spring mounts you currently have on your trailer. I would recommend the Enclosed Trailer Ramp Spring # ERS160D96. This is a 96 inch wide spring with a 160 lb capacity that is wider than the spring you recommended that should better match your door ramp width that should do well for you but it will require you mounting it directly to your trailer and not use the mounting brackets you already have. The installation instructions for...
    view full answer...

  • Recommended Spring to Help Close Ramp on a 2006 Gearbox Toy Hauler
  • The Enclosed Trailer Ramp Spring # ERS120D81 that you referenced is an excellent option to help you lift the ramp on your 2006 Gearbox Toy Hauler. It has a 120-lb weight capacity so if your door weighs over 120 lbs, say 150 lbs for example, then you would only be having to lift that extra amount, which for example would be 30 lbs. The 81 inch width will fit great once installed since your door is 96 inches wide. If you do not have experience winding torsion springs then we recommend...
    view full answer...


Do you have a question about this Enclosed Trailer Part?


Used Items Available

Condition: Missing Parts

Notes: Item is missing the hardware. Otherwise new and unused.

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Condition: Missing Parts

Notes: Item is missing the hdwr and cable. Otherwise new and unused.

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  • Highest quality enclosed trailer parts for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate enclosed trailer part information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Satisfaction Guarantee
    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Expert Research:
Michael L
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Adam R
Installed by:
Jeff D
Installed by:
Cole B
Updated by:
Sarah W
Updated by:
Matthew E

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.