imadirtguy

Are all c4 rear springs interchangeable? I was thinking about tring to find a 84 z51 rear spring in my 91.

Thanks

Carl Johansson

Heres a chart with spring weights etc for all the years
http://www.idavette.net/hib/c4/sustunch.pdf

Hope that works - springs varied quite a bit by years and models. I'm still looking for a used 84 Z51 if anyone knows where I can find it!

Carl Johansson

Mojave

Yes, the rear spring from any C4 will fit any other C4.

imadirtguy

Thanks for the info.

Jake

NASCAR314

A few points here:

- The FRONT springs are only interchangeable for 84-87 and 88-96 , rears work 84-96

- I have installed a 84 Z51 rear on my 96, What I noticed was a much stiffer teeth rattling ride of course, and the car is much looser in cornering , it will oversteer quite a bit. A stiffer front sway bar helped balance it back out. Also you may want to stay with a fairly soft rear sway bar as well. A stiff rear sway bar and stiff rear spring will really cause oversteer

This has been my experience with the C4, others may differ, this relates to flat tracks best.