7 wide 2 wheel 1 spring.
Enclosed trailer ramp door torsion spring adjustment.
You will find that design assistance here in this article.
Since your pace trailer was using an enclosed trailer ramp spring and you want the spring to function again you will need to have a qualified professional work on it one with experience with torsion springs like a garage door company.
The mounting bracket has two 3 8 holes that allow the installer to bolt the spring to the rear header.
Sizes range from assists for 5 wide trailers to 8 5 wide trailers.
Without the cable and spring in good working order the ramp will never operate as easily as it did before.
All mounting hardware included except for mounting bolts.
The overhead ramp door spring system is designed for enclosed trailers.
Conventional ramp door spring for 8 wide enclosed trailer dual spring 250 lb capacity.
The system features a double drum and cable.
5 and 6 wide 1 wheel 1 spring.
Once on the ground it is difficult to lift and once closed it is difficult to open.
The door is very hard to open but also hard to close.
When starting a new torsional trailer spring design you must know the following parameters.
Trailer ramp springs are heavy duty torsion springs which work as a lift assist to take the majority of weight off of the gate ramp lid.
Overhead mounted spring assists allow easier closure of trailer ramp doors.
How to determine required.
Ramp door spring assist overhead.
Unit is completely assembled cables sold separately.
Single spring 96 2 x 60 lbs.