Rear suspention setup opinions

[psuhillbilly150]

Car is an 89 notch w/408 motor. I finally have the money to stuff an 8.8 up under the car. I am going with moser setup full spool, 33 spline axels c-clip eliminators, with 4.10 gears. Now for my suspention, Granatelli adjustable upper control arms Megabite lower control arms shocks are the MMR coilover setup with lakewood 50/50 shocks and QA1 10-150 springs. Torque boxes have been strengthened. I am running Weld prostars on the back with MT ET Streets 26x10.5 on a 15" wheel. The opinion I am most interested in is what spring I should run in the rear. Right now I have a set of 4 cyl springs in there that came with the car. Should I be looking for a spring with a 150lb spring rate to match my coilovers or stiffer or lighter? I asked this same question to the guys at MMR but I want to know what others think. Thanks guys, Bill

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[wildcobrar]

I have 3 way adjustable comp engineering shocks on the rear set at 50/50. I have run both 4 cylinder rear sprins and V8 rear springs. There are UPR adjustable uppers and lowers with sperical bushings along with a rear anti roll bar. With the pinion angle set right and the anti roll bar set correctly I have pulled 1.5 60 foot times with mt street car.

Joe

[Slowstang357]

4cyl springs in the front to transfer the weight and stiff springs in the rear so the power goes to the ground and no squatting..