Hotchkis leaf springs sagg brand-new

Dan, I replied on protouring as well, but the car is parked until my fuel injection swap is done, then im driving it to my dads shop to rebuild the trans and trash these springs.

Im not sure what this car weighs, but its pretty stripped down (except for the 5pt cage and battery in the trunk) I cant imagine that it weighs anywhere near 3400lbs-maybe with me in it, and some fuel.

Im no expert, but I know unsprung weight is a huge deal, but im not sure how that would affect the springs.
You can see how the differential jerks forward and backward when im lugging it in 2nd gear or rolling into and out of it, that seems more a cause of torque, but the differentials mass may be adversely affecting this but I cant imagine.