Spring Rates for 2nd Gen Firebird???

[79T/Aman]

ripper, the old Rancho rear bar was 1" adjustable, we have 7/8" adjustable and a 3/4" adjustable

[BMR Tech]

If they're standard 2.50" coilover springs, there are a number of sources for different rates going beyond 1000 lb/in in various free lengths. 2.25" OD c/o's, maybe not as heavy.

Hypercoil is one source (Google it), Ground Control is another (note that GC is sometimes a bit slow, and that I know of one vendor who has stopped carrying their stuff for that reason), but maybe you can get Eibach c/o springs directly and avoid GC entirely.


Norm

Norm, I was thinking the same thing but then remembered that the QA1 Pro coil is a special tapered spring QA1 makes that only works for this application. It is not a true coil-over that captures the spring at each end. The top is a 5" diameter spring that sits in the OE spring pocket and the bottom tapers to 2.5" for the adjustable shock collar.

Blacknight, I think you could probably keep your coil-over shock, remove the adjustable spring collars and run a standard spring on the A-arm. QA1 Stocker Star shocks are not really any different than the QA1 coil-over shocks you already have except they don't have a threaded body. This would save you the expense of buying a whole new adjustable shock.

[blackknight]

Brett, thank you.

I am either going to do what you suggested by buying a normal spring and pull the collars off the coil over, or I just got the Heidts new catalog and they have coil overs which i believe are the same size as QA1(with the tapered spring 4.5 to 2.5), I have to get the exact specs from Qa1 and compare to Heidts, but heidts offers up to a 700 pound spring. so that would work too. and they are cheap 100 bucks for a chrome pair.

thanks for all you help, I should be able to fix these few little probs in the early spring. I just cave to call some people and then order.