Originally Posted By 65Fury440
Thanks for the response guys.
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I called these guys today, was looking at this spring with the Spring Rate = 130

http://www.generalspringkc.com/product_p/33-907.htm

I am worried about wrapping up my springs. I know they are old, but after installing the new engine, the u joint straps ripped out, it didn't take much.

I don't understand if spring rate translates into resistance to axle wrap.

The XHD springs don't list their spring rate.Anyone know about where they are rated?

Am I worrying too much? I just want to be able to launch it without too much rotation.


If you tore a strap off the U-joint the pinion
rolled up too far and bound the joint and tore
the strap off.. I've been using the stock straps
for 12 years on my car.. if you look at where the
joint sits in the yoke you will see that the caps
set in OVER half way.. this puts all the load on
the yoke and not the straps.. they just hold the
joint into the yoke.. as to spring rate and pinion
roll up.. the rate doesnt have anything to do with
it.. the front segment is what controls that.. the
rear of the spring is the rate part of it
wave