Replacement Ramp Door Spring Assembly for a Cargo Trailer Ramp Door

Question

Question:

Hello. I need to replace the ramp spring assembly for our trailer. There are 2 cables on the ramp, and 2 springs on the spring assembly. The trailer is a Carry-On 6X12CGR7K. The spring assembly is approx 66 wide. What do you recommend? Are spring assemblies for these ramp doors fairly universal or are they brand specific? Thank you.

asked by: Glenn J

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Expert Reply:

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 times and it can be a dangerous DIY job if you don't have experience.

expert reply by: Jerred H

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Answer 1

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…

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Answer 2

You won't need to obtain the weight of the entire door, just the un-hinged side. You'll want to find the amount of weight you'll need to overcome to easily lift the door. You could use an old bathroom scale, place some blocking on it, and…

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Answer 3

Enclosed Trailer Ramp Spring #CB250D96SHD weighs approximately 45 pounds. I have included a link to a video review of this spring for you.

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Answer 4

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 5

To test the weight of your ramp door, you will want to get the door all the way down to the ground and then on a scale of some kind (a bathroom scale can be used for this if it's the only thing available). This will be when the door is at its…

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Answer 6

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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Answer 7

To determine the correct weight springs you will need a scale to determine how much weight is on the door when it lays out on the ground. You will place the scale on the ground in the center of the landing path of the door edge. This will tell you…

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Answer 8

Hey Lou, so the install of the Conventional Ramp Door Spring part #362SA7218 is something that should be done by someone who has experience winding garage springs. The amount of turns or preload will be the amount that gives you the correct amount of…

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Replacement Ramp Door Spring Assembly for a Cargo Trailer Ramp Door

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