What is the difference between normal springs and progressive rate springs?
I'll buy the poly top insulator just in case the new springs don't solve the situation
Progressive rate springs have a lower rate during normal driving but the rate increases as the spring compresses (i.e. while cornering, bumps etc.) If you look at one you will notice a difference in spacing between coils from bottom to top.
I had also thought of the 1" coil spring spacers. It's a cheap option to see if you can make the problem go away.
I would think that rolling the fender trim would be easy after rolling the fender lip, the trim is much softer. If the tire can contact the fender lip at full compression of the suspension then the tires stick out a little too far (backspace). I rolled my fender lips and got ~1/2" of extra clearance and no more sharp edge facing the tire in case i hit a pothole. I'd also try ajdusting for more neg. camber.
"If it ain't broke, I haven't fixed it yet"
1967 Coupe 333ci CandyApple Red w/red int., AOD, 9" 3.50:1, Front PDB
'09 Warriors In Pink V6 w/glass roof - wife's Stang
Luke which way are you going. Im about to do the Shelby drop as well and I already suspect my springs or shocks are worn out. I have to slow down a lot before I hit any kind of bumps or my wheels rub and the whole front end just feels way to bouncy. Ill be watching to see what your fix is. post links of the parts if you have gotten that far yet.
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