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  1. Trailer Ramp Springs
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  3. Single Ramp Spring
  4. 72 Inch Wide Doors
  5. Conventional
  6. 66 Inch Wide Spring
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
Our Price: $143.05
Trailer Ramp Springs
This item qualifies for Free Shipping
Shipping Weight: 20 lbs
Quantity: 
In Stock
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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. Great 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.
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  • Reviews (267)
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  • Why etrailer?

M-3 and Associates Trailer Ramp Springs - M384FR

  • Single Ramp Spring
  • 72 Inch Wide Doors
  • Conventional
  • 66 Inch Wide Spring
  • 80 lb Capacity
  • 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 Satisfaction Score:


Customer Reviews

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

Average Customer Rating:  4.7 out of 5 stars   (267 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!




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by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


Trailer door extra welded extra heavy. This spring has worked great for a year so far, never pushed its limits but never didn’t trust it.




by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


Installed on our 2015 cargo trailer to replace broken unit. Works flawlessly and would order from etrailer again if we need parts.




by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


The M394FR ramp spring I purchased a year ago has been working great. It was easy to install and out performs the original spring on my 24’ car hauler trailer.




by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


Complete kit, no alterations or additional parts needed. Totally bolted into existing structure. Will use e-trailer again in the future.




by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


use it on my daily use trailer and everything is working great a year later , thank you.




by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


Easy to follow instructions. Works grea t.


Comments
Still working as designed. Easy install.
Mark - 12/31/2022


by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


I added this to the front trailer door which never had a spring assist. It installed easy and works great on the 60" wide ramp door.




by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


Product is good and quality was as expected. Instructions were decent. Packaging was very poor. Product was dropped into oversized box with no packaging materials. Arrived with rod sticking out of the end of the box and a crack in the cable wheel. Wasn't worth the effort to return, so I used as-is.




by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


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


Comments
Works great
Tim - 10/05/2022


by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


We received our door spring and the drums were damaged. I called etrailer and they sent new ones out quickly so we could get our trailer door fixed right away. They were most excellent in customer service :)




by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


Customer service was great! Some parts were lost in shipping and everything is good now.




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


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 ordered it and it was here in 3 days! Good quality, Nice price & Fast shipping! Nobody local would sell us one because we weren't using it for a ramp door! We used it to assist in lifting the 80lb. stairs on a truck. Works great, There won't be any back injuries now.




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


when installed it should be an excellent addition to trailer.




by:

Review from a similar M3 Ramp Springs in Trailer Ramp Springs


Got package which was opened ,,, Missing the main brackets and need 8 ft assist ramp helper


Comments
Thank you for letting us know about the missing brackets. I will have our customer service team reach out to assist.
-- Etrailer Expert Jenny N - 07/27/2022


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


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


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.....



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Show More Reviews

See what our Experts say 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?




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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

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