Quote:
Originally Posted by SSGN
I am doing a 66 Chevelle frame off street/strip car. I will be using factory bolt in suspension components for this car also.
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that rules out Alf's and every other manufacturer of aftermarket trailing arms, both adjustable and not.
The go to spring for BB cars was the Moog 5392. I know, because 2 decades ago, I did the work for my car, which was 3900 lbs. and had a 59%/41% front to rear weight bias. Spent days in a Moog catalog, tried many springs and ultimately settled on the 5392 after which I informed all on the chevelle web site. Unfortunately it is no longer available from Moog but a custom spring shop could still make them with the specs...
Moog 5392
17.95".......................Free height
11.50".......................loaded
266 lbs./in..................rate
.61...........................wire diameter
2026.........................total load
and this place was making springs to the above specs back 10-15 years ago...
http://www.springsnthings.com/
If the car in question has far less nose weigh on the springs than the 2300 lbs. my car did, you really need to 4 corner scale the car to get the right spring.