bing tracking image
  1. Trailer Ramp Springs
  2. M-3 and Associates
  3. Single Ramp Spring
  4. Conventional
  5. 72 Inch Wide Doors
  6. 80 lb Capacity
Conventional Ramp Door Spring for 6' Wide Snowmobile Trailer - Single Spring - 80-lb Capacity

Conventional Ramp Door Spring for 6' Wide Snowmobile Trailer - Single Spring - 80-lb Capacity

Item # M384FR
lowest price pledge
Our Price: $145.88
Trailer Ramp Springs
This item qualifies for Free Shipping
Shipping Weight: 20 lbs
Quantity: 
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Need help with installation?
Locate installers near me
Replace your old snowmobile trailer door spring with this heavy-duty conventional ramp door spring. This single-drum setup reduces the chances of getting your snowmobile's ski caught in the cable. Fits 34-3/4" to 66" wide trailer doors. Lowest Prices for the best trailer ramp springs from M-3 and Associates. Conventional Ramp Door Spring for 6' Wide Snowmobile Trailer - Single Spring - 80-lb Capacity part number M384FR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (213)
  • Q & A (0)
  • Videos (1)
  • Photos
  • Why etrailer?

M-3 and Associates Trailer Ramp Springs - M384FR

  • Single Ramp Spring
  • Conventional
  • 72 Inch Wide Doors
  • 80 lb Capacity
  • 66 Inch Wide Spring
  • M-3 and Associates
  • Steel

Replace your old snowmobile trailer door spring with this heavy-duty conventional ramp door spring. This single-drum setup reduces the chances of getting your snowmobile's ski caught in the cable. Fits 34-3/4" to 66" wide trailer doors.


Features:

  • Ramp door spring lets you easily lift and lower the door on your snowmobile trailer without risk of injury
    • Helps take on the weight of your trailer door so you don't have to
  • Spring reduces wear and helps prevent damage to door hinges
  • Single cable reduces the chances of getting your snowmobile's ski caught in the cable
    • Installs on the passenger's side of your trailer
  • System can be modified to fit your specific application
    • Slide the bracket down and cut the shaft to a shorter length
  • Orange safety cover installs on top of the bolt heads to prevent any unwanted adjustments
  • Sturdy steel construction
  • Made in the USA


Specs:

  • Application: 34-3/4" to 66-7/8" wide trailer door
  • Dimensions: 66-7/8" wide x 4-3/4" tall
  • Spring capacity: 80 lbs
  • Cable length: 150"
  • 1-Year limited warranty


Warning: It is recommended that only individuals who have experience winding torsion springs install this product. If you have not worked with a torsion spring system before, we recommend contacting a local garage door company to install this system.



9500473 M-3 Snow Mobile Trailer Ramp Conventional Springs - Single Spring - Single Drum - Single Cable - 80 lbs - 66"

CB80SR66S





Video of Conventional Ramp Door Spring for 6' Wide Snowmobile Trailer - Single Spring - 80-lb Capacity

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




Video Transcript for Review of M-3 and Associates Enclosed Trailer Parts - Ramp Door Spring - M384FR

Jeff: Hello everybody. This is Jeff at etrailer.com. Today, we're going to take a look at this conventional single spring, single drum ramp door spring for up to a six foot wide, enclosed trailer, has an 80 pound spring capacity. Now this part will replace your old trailer door spring with this nice heavy duty conventional ramp door spring. This ramp door spring will let you easily lift and lower the door on your enclosed trailer without risk of injury. It is designed to help take on the weight of the trailer door so that you don't have to.

This one here happens to be a single spring and a single drum system. A single spring is on the torsion rod has this cable drum here with the lift cable at the one end to lift the door. It only uses one cable to lift the door in this application. And this system is normally used in snowmobile trailers to help reduce the potential for catching a ski in the cable.This spring does reduce the wear helps prevent damage to the door hinges. Now, when you do install this, the spring is designed to be mounted one way for proper operation.

And the way you can tell that is if you look at the cable drum, it'll be stamped with an R, which means for the right side. And they do also spray painted black here for visual indication of knowing that that's for the right side. The right side is designed to mount on the curb side of the trailer.Now this part will include everything laid out here on the table. The spring itself, the mounting brackets, the hardware for the mounting brackets, the bearing, gives you 150 inches of one eighth inch diameter cable and hardware to install that. And then the set screw cover.

Now this spring system can be modified to fit your specific application.You can slide the bearing and the mounting bracket where needed, and then just cut the shaft to a shorter length. So if we put the bearing on, let's say, you're going to go all the way, to narrow as possible. And if you put the mounting bracket on. So you can see what that all installed, it will fit any words from if we measure this portion 34 and three quarter inch wide trailer door, all the way up to the widest, which would be sixty six and seven eighths inches wide. Now this is a nice sturdy steel construction.

It is made in the USA. Few specs, again. The overall length from this end, all the way to this end is going to be right at sixty six and seven-eighths inches long. The drum diameter, which is the widest diameter on this is about four and three quarter inches diameter. And the spring capacity, as we mentioned, is 80 pounds.But that should do it for the review on this conventional single spring, single drum ramp door spring for up to a six foot wide enclosed trailer, has an 80 pound spring capacity.


Customer Reviews

Conventional Ramp Door Spring for 6' Wide Snowmobile Trailer - Single Spring - 80-lb Capacity - M384FR

Average Customer Rating:  4.8 out of 5 stars   (213 Customer Reviews)

Replace your old snowmobile trailer door spring with this heavy-duty conventional ramp door spring. This single-drum setup reduces the chances of getting your snowmobile's ski caught in the cable. Fits 34-3/4" to 66" wide trailer doors.

by:

I think you sent me wrong side said curb side I am using it in front of trailer seems to be back word but with some fabricating maybe I can make it work


Comments
This spring does fit on the passenger side of the trailer if you were facing the back of the trailer. All of our single, conventional springs would be the same. We also carry dual springs that would install on both sides.
-- Etrailer Expert Jenny N - 02/19/2022

by:

I really appreciate your attention and courtesy.
Very professional.
I really recommend this company 100%



by:

Great product with great price!! My back is very appreciative!



by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


I have a home repair buisness and repair and install garage doors so it was a great benifit in intalling this ramp door spring. The quality of these are right up there with whats on your garage door just lighter duty springs. Be sure to weigh your door to get the correct springs. Customer service was beyond great, thank you to all reps.



by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


I bought this to retrofit an enclosed trailer that was originally built with exterior springs.
This is a major improvement over the other style and money well spent. Everything went smoothly according to the instructions. I was good at 38.
My door is now a "one hand wonder".



by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


So ordered this assembly , fast , friendly ( Kyle D ) assisted and was able to answer all questions about this product and the result was quality new door spring and assembly for my cargo trailer. Easy to follow step by step instructions. Would definitely recommend this upgrade.....



by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


This unit looks real nice going to install it soon arrived in good time considering it had to ship to Alberta Canada the price is decent the tracking was perfect thanks sure are easy to deal with



by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


Everything worked out great. Installed on a snowmobile trailer. The door originally only had a spring system on the bottom of the door. It took 2 people to close. After installing the M394FR it is a 1 arm operation. Highly recommend this product



by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


First, shipping was really fast. After I ordered I received a email saying my order had already shipped. I ordered on a Tuesday and was able to install my equipment during the weekend. I have a smaller 6 x 10 trailer and I only utilized 1 torsion spring which gave me a back up spring for reserve. After installing the unit with new tension cables my ramp door works smooth and I’m really happy to have my trailer back in service again. etrailer understands the importance of getting customers product out as soon as possible. I thank you for your professionalism and will recommend your company in the future.



by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


Great price and fast shipping. Packaged well and has everything you need besides the wrenches rods to wind spring. Very easy to install. Since I had been brackets already it took me about 45 minutes including taking the old one off. And I already had the rods to wind spring up which is a must. Thanks.



by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


Fast shipping, good people too do business with, just give them a a call they will help anyway they can thanks for everything



by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


Works very well,I was worried because I had to cut down the length ,had to take off one spring because of how short I had to make it.But I am very pleased and the door lifts great.



by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


Easy to install, makes opening and closing the ramp door a breeze.



by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


Already pre-assembled for the most part....I like the instruction method for setting spring tension....everything seems to be working as it should



by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


excellent service. delivery was on time and very efficient. will definitely do business again.



by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


Worked well, cut down the bar to fit our trailer needs and bolted right up. Right side pulley was bent, (Probably from Shipping). Working with them for a replacement. Just took the pulley off the old to get the trailer back on the road. Installed quickly with 2 guys and everything was as described when purchased.



by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


The part I initially ordered got back ordered. My sales representative kindly recommended an upgraded alternative at the same price. Shipping was quick and the new part was easy to install. Five stars all the way!



by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


took awhile to get no fault of e-tailer I made a change with no problem,look forward to doing business in the future



by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


Installed like I new what I was doing why didn’t I put this on years ago? It works great



by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


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



by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


This was a great purchase. I modified the rear door on my trailer and this came with everything that I needed to install it. We use the trailer almost every weekend for 3 seasons. it works just as good now as the day I installed it.



by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


Took less than 4 hours to fit and install. I added a ramp to a double door cargo trailer was a strain to close until I added this spring now can close with ease. Perfect for my now motorcycle trailer



by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


Recently purchased this trailer ramp dual spring to replace my single spring. The original spring roller from factory snapped. Cut to fit it to 75 inches. Perfect replacement. Instructions very detailed and right on. Install time with spring adjustments 1 hour. Delivery was fast and product was priced competitively. Very happy. And dual springs just make more sense.


Comments
After a year of wear and tear, working perfectly. Remember oil the springs at least monthly
Vito.m - 06/05/2017


by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


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.


Comments
Easy to install, work great. money well spent.
John W - 09/16/2020

by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


This system has worked flawless for a year would recommend it to anyone needing one


25
213
Show More Reviews

Ask the Experts about this M-3 and Associates Trailer Ramp Springs

  • Difference Between Conventional Ramp Door Spring for 6' Wide Enclosed Trailer # M364FR and M384FR
    The Conventional Ramp Door Spring for 6' Wide Enclosed Trailer # M364FR has two spools that cables can attach to which gives a bit more flexibility in how it can be used whereas the # M384FR only has a single spool. I attached review videos for both for you to check out as well.
    view full answer...
  • Are Trailer Ramp Door Torsion Springs Available as Separate Items
    Unfortunately, we don't offer the torsion springs as an individual item. I'd recommend the # M384FR 6-foot spirng assembly which includes the shaft, drums, cable and all the needed hardware for installation. Keep in mind, those torsion springs are wound up with an incredible amount of force so for the sake of safety you'll want a professional to handle the installation for you. I can remember helping a friend to install a similar spring on a garage door years ago. He was using a screwdriver...
    view full answer...
  • Replacement Ramp Door Spring Assembly for a Cargo Trailer Ramp Door
    The spring assemblies are pretty universal and can be cut to length depending on what size you need. The Conventional Ramp Door Spring for 7' Wide Enclosed Trailer - Dual Spring - 120-lb Capacity item # ERS120D81 will work for your Carry-On 6X12CGR7K. You will have to shorten the bar to get it down to the 66" wide you require. If you don't have experience working with torsion springs I recommend you contact a garage door installer. Each spring has to be wound a quarter turn at a time 30-40...
    view full answer...

Do you have a question about this Trailer Ramp Spring?




  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality trailer ramp springs 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 trailer ramp spring 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

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

Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Wilson B
Updated by:
Wilson B
Employee Mike S
Written by:
Mike S

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.