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Old 11-15-2021   #2
1991 Corvette ZR-1
 
Join Date: Sep 2018
Location: Florida
Posts: 305
Default Re: Dropping a z one inch

The rear is not a problem so much as the front. To drop the front, unless a new way has been discovered, the top part of the cushion on both sides of the spring has to be removed and replaced with acquired lowering wedges for a parts supplier. They are made of urethane and pyramid shaped. The problem some have encountered with this is using a specific adhesive to fix them to the spring. The spring tends to dislodge them and spit them out. I have not heard of anyone finding an adhesive that was a permanent fool proof way to keep the wedges bonded to the spring.

It may have something to do with the actual design of the wedges. The factory cushion has a pivoting assembly inside the rubber on top of the spring, allowing the rubber to flex and move as the spring flexes. The wedge is solid and stationary. The side with the cured adhesive takes the brunt of the flexing of the spring and the weight of the car and gets spit out.
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