Originally Posted by coilover
If the axle sits on TOP of the spring ( most do ) then any kind of block will LOWER the back. If you need a radical rear end lift mount the axle on underside of the spring.
The OP needs to specify whether he has a 1/2 ton, or a 3/4 ton. One has springs under the axle, while the other has the springs over the axle.


1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission