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Review of M-3 and Associates Trailer Ramp Springs - Single Ramp Spring - M358FR Video

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Info for this part was:

Employee Steven C
Installed by:
Steven C

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Products Featured in this Video


Conventional Ramp Door Spring for 5-1/2' Wide Enclosed Trailer - Single Spring - 120-lb Capacity


M-3 and Associates Trailer Ramp Springs

47 reviews


Code: M358FR

Retail: $210.69

Price:  $205.24
  • Trailer Ramp Springs
  • Single Ramp Spring
  • Torsion Spring
  • 150 Inch Cable
  • 86 - 120 lbs
  • Conventional Spring
  • 4 Foot Wide Trailer
  • 5 Foot Wide Trailer
  • 6 Foot Wide Trailer
  • 69 Inch Wide Spring
  • M-3 and Associates



Upgrade your trailer with this heavy-duty ramp spring. It provides smooth operation, reduces strain, and prevents freefalls. Designed for enclosed trailer doors 38"- 69" wide, this durable system ensures safe, reliable performance.


Do you have a question about part M358FR?more information >     


M-3 and Associates Trailer Ramp Springs - Single Ramp Spring - M358FR Review


Hi, everyone. Steve here with etrailer.com. Let's take a look at our Conventional Ramp Door Spring for five and a half foot wide enclosed trailer doors. Now folks, this is considered a single spring, and it's rated for 120 pound capacity. So with this spring system, you're gonna be able to effortlessly lift or lower those trailer doors without having to worry about injuries or risk. … see more >