Originally Posted by Randy 4. I have to disagree here a little. By going to the coilovers, and installing the TRZ kit, that allows you to use a standard coil over spring, you can choose from an infinite number of spring rates. The fact that the S- 1. I started with the QA1's and it helped. Later I did the TRZ conversion, and Hypercoil springs, and it made a world of difference. To the tune of 1.
These trucks need a little help to get the weight transfered, and some stored energy in the front springs helps. It's defintely not the only part of the suspension that needs to be addressed though, you have to have both ends working, and the daggers are a good way to may the rear work. I dont disagree with what your saying on spring rates, as this is with any car, but you can find a stock spring with differing rates if you look even a little, and they are a longer spring letting you use a even lower spring rate, with a bigger coil, so it does not coil bind. My car has a 2. 12 in the front, I dont think a 2. You theory is correct, but application of the lower rate spring what ever it is will give more stored energy.
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The spring helps a lot, but the Bushings in the front need adressed big time, if your not going to go to a TRZ style A- Arm, the best shock in the world sucks with Stock bushings.
Building a pump gas friendly early Hemi with a blower takes careful parts selection and the right tuning. We follow the build and dyno on this project with Borowski.
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Suspension Kits for your 1999-2004 SVT Lightning / Harley Davidson at RPM Outlet. Low pricing and fast free shipping on orders over $100. This is part of a series of articles to aide in the swapping of cam and valve springs on the 4th Gen LT1 F-Body. As usual, use these instructions at your own risk. Chevrolet 406 CI Small Block Build - Chevy Small-Block Power Budget 406ci Buildup.