Hotchkis leaf springs sagg brand-new

dustbull said

Before was ~2yrs ago in another A-body but yes, i could fit the stock snubber on with stock slant 6 springs...with that being said i have bent/broken several pinion snubbers when the car would squat down and accelerate before I sufficiently reinforcing a snubber to work.
My previous springs were Mopar Performance springs, they were stiff enough and the car washigh enough up that i had no issues with the snubber taking excessive forces.

The rear height is way too low, id like it to be up ~2" more which is what i think it would be if the springs were the proper rate. Im running 275/40/17's
Hotchkis leafs below:

Click to expand...

The rate of any spring is not the same as it's compressed height. A 12" tall 200 lbs/in coil spring will collapse to 11" when it has 200 lbs put on top of it. A 10" tall 200 lbs/in coil spring will collapse to 9" when it has a 200 lbs put on top of it.

Same idea for leaf springs.

Does your Dana 60 rear end have a truck center section or an original 66-72 Chrysler passenger car center?

The only factory A-bodies that got Dana rear ends were light 68 Super Stock cars that had Super Stock springs. The cars were sky high with the idea back then to get more rear weight transfer at the drag strip.

Those MP springs are all jacked up high. Not a handling deal. You have them up in that car because it's got a set of headers and oil that hang way below the chassis. So you have to jack up the front so it doesn't rip the oil pan and headers off.