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fast hot rod
02-14-2013, 09:44 PM
i was wondering if it mattered what way you put a progressive sping in a 3 way pull bar

hasben
02-15-2013, 12:48 PM
Someone please correct me if I am wrong. The spring is designed to work on compression and the more compression, the stiffer it becomes. Under deceleration you have a biscuit to absorb the braking shock. The spring will provide the same amount of force to decompress it as it took to compress it, unlike a shock absorber. I hope this helps.

Confused?
02-15-2013, 05:13 PM
The three way pull-bar is designed to use a linear spring. It's progressive by design. The spring collapeses to a point and then hits the biscuits. They can be adjusted to when it starts to load the biscuits in relation to spring travel.

MM90
02-15-2013, 07:58 PM
To answer the original question. No it doesn't matter. But I always put the heavy side of the spring towards the rearend.