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04-23-2016 #1
Registered User
- Join Date
- Feb 2010
- Posts
- 23
Please help with choosing rear springs
I want to lower the rear of my car about 1". It's a 1970 buick GS. I have the eibach pro kit springs in there now. The rears are #3856.002 . The front sits ok but the rear is still too high.
Thanks, Tim
Tim Goheen
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04-23-2016 #2
Registered User
- Join Date
- Mar 2007
- Location
- Mission Viejo, CA
- Posts
- 631
The best way to get exactly what you want in spring rate and lowering is to call Coil Spring Specialties in Kansas, (785-437-2025). They can build any rate and height you need. They have all the original GM spring charts as to the size of the windings, the rate the springs were between models such as a GS car vs a standard Skylark. I did this a few years ago. I sent them the rear springs I had in the car, they mapped them out, and contacted me with the specs. Based on those numbers, I ordered my desired rate, and lowering for the new springs.
1973 Hurst Edition Pontiac Grand Am: 430 CI of ERL built LS7, Tremec Magnum T-56 6-speed, Global West / Speedtech Suspension, Custom rear coil-over suspension, QA1 double adjustable shocks, Wilwood 6/4 piston disc brakes, Modulare C1 19" concave wheels. Shooting for 625 HP and 20 MPG!
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