Lowering blocks are used to lower the vehicle when the axle is on top of the spring. When the axle is under the spring the blocks are called lifts, and the make the vehicle higher.

If you peak under the front of your '50 you'll see that the axle is under the springs, so you can't lower the truck by inserting blocks.

I've seen people grind the spring bracket off the axle and weld new ones on the lower edge, allowing moving the axle on top of the springs. That lowers the truck quit a bit all in itself, but it also makes the axle close enough to the frame that you're likely to have some problems.


1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble...