help needed with ramp

[seddie78]

hello everyone im new on here

just wondering if any body could help me or give me any advice tips whatever im new to this we recently bought a ford transit 3.5 tonne converted into horse box with back ramp on it we are currently doing it up and have nearly completed the job apart from the springs on the back ramp was really in poor condition 1 was longer than the other anfd really rusty so we got told to get rid of them and buy new without the springs on it takes 3 men to lift the ramp its really heavy i have found some foulger springs 4cwt heavyweight to help http://www.jswhorseboxes.co.uk/product_info/427_ramp-springs---4cwt-foulger these are what i have found but when i have spoke to the pwerson selling them they said i should know the weight of the ramp and correctly know where the pivot points etc are i cant get the ramp off to weigh it and i dont have a clue on pivot points and where to put the springs if any body could help me that would be great coz i dont have a clue on this kind of stuff ill try adding a couple of pics of the ramp to try giving some idea on how it looks the frame is box tube with exterior plywood rubber matting and wooden beads with ally sheets added

 

[seddie78]

i dont know how to add pics

 

[Dry Rot]

Measure the diameter of the spring, its length when not stretched/extended, the diameter of the steel making up each coil, and the number of coils. Then get back to the spring manufacturers and try again with this information. If they say they can't help, ask if they can recommend someone who can. Google should bring up lots of spring manufacturers.

But I wonder if your springs are really worm out? You should be able to tighten them up by turning nuts on the end which will increase the tension. As you increase tension by tightening these nuts, the ramp should appear lighter, if that makes sense!