Quote: You can use the stock plates, but will begin to squeak over time because the plate isn't located to te center pin on te spring. I did this same thing on the first one that I lowered over 20 or more years ago. I drag raced mine & made the axle slide forward on the springs because it was only located on one side of the pin.
I wouldn't think the axle would move at all with it all being clamped together with the U-bolts and the spring perches being located by the center pins. I guess I'll weld a centering plate to the spring side of the shock plates.
