roadrunnerh said:
Good point Bob, but I have to admit that I dont understand why the helper spring wont work.
If the car is jacked up and supported at the front portion of the rear frame rails, and the springs are now arched since the wheels are off the ground, and you install / bolt on the spring helpers, How will it not help maintain the arch once the rear is lowered back down? At least in the portion which the helper spring was bolted down on can not return to it's original "flatness".
I hate to admit to it but as a kid with little money I tried most of the crap out there from emergency adjustable fan belts, muffler bandage, Long shackles, helper springs, maybe there improved, trans stop leak. I don't think your going to run a helper spring with the 383 in the car? The springs won't work right for traction or ride.