What to Know About the Conventional Ramp Door Spring for 6' Wide Enclosed Trailer Video

Normally the trailer ramp springs like the #362SA5 attach to the inside of the top of a trailer door like the picture I attached shows. In the picture you can also see how it attaches to the ramp as well.

Hey Michael! I would be happy to help you with the spring assist but we do not have a ramp door for you. I've got a couple options for springs depending on the weight of the door/ramp you choose to go with. These come with all mounting hardware…

Trailer ramp door springs are generally chosen based on the inside width of the trailer where it will be installed. Also, ramp door springs such as #362SA6 can be trimmed down some if the length is too much for the trailer. This is the shortest…

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…

For a 6' wide trailer we have the 120lb capacity #362SA6 and 80lb capacity #M364FR ramp door springs from M-3. Both of these options can be shortened by sliding the mounting bracket down and cutting the tube to fit your trailer. The #362SA6 fits…

On a hinged trailer ramp the hinges will carry a varying portion of the ramp weight depending on the ramp's position. When fully opened/extended the torsion spring will actually be holding more of the ramp's weight that when it is almost…

The spring with the black cable drum should always be mounted to your LEFT, standing on the inside of the trailer looking out. This is very important for proper operation. Dual spring systems, like #ERS160D96, have a red-coned and a black-coned…

Hey Dennis, To my knowledge there isn't a lift-assist for an enclosed trailer door so the only option we can offer would be to swap out the door spring from a single #M374FR to a dual spring system like #ERS120D81 to give you a bit more balance…

In order to properly weigh your door to figure out the correct spring you only need to find the weight when the ramp door is down. Assuming you weighed your door without spring assist, you can use the 74 lb measurement. Typically, you use a scale and…

Hello Tim, I am happy to get you into the right spring, but we need to know the weight of the door. You mentioned that the one you are replacing is "orange coded" but the issue is that there is not a real standard and companies use…

With your over head garage door springs frequently breaking you may not have the correct capacity springs for your door. We have kits that range from 80LBS #M374FR up to 250LBS #CB250D96SHD. The weight rating is not the door weight but the amount of…

The Enclosed Trailer Ramp Heavy Duty Spring - Dual, 96" Wide #CB250D96SHD is rated for doors up to 250 lbs. I'm confident your ramp won't weigh more than that unless you've added weight to it beyond the decking.