Lowering a 1957 GMC 3/4 ton

[54Nlow]

you will probably need to c-notch the frame above the axle, and also you need to address steering issues. you may create a lot of bump steer, and have to modify the steering linkage to correct the change in geometry.

Hi 1-ton of fun
thank you for the information of this.
can i put the same Shackle kit? Ok maybe the shock absorber i must exchange.. have you pics for me ?

Thx F.S

[1-ton of fun]

you will need shorter shocks. you could use the stock shackles (i think). most of the work will be in correcting steering geometry.

[Riggs'57]

In doing the spring flip on the front suspension, you will somehow have to address the fact that the axle has a mounting surface ony on the top, where the springs are in the stock location. The bottom is only skinny I beam. Maybe some good welding will help. If anyone has done this, I'd like to know how, because nobody makes a 3/4 ton drop axle. bummer. Should I just find a 1/2 ton before I spend any money in the 3/4 ton? I just got it and have spent (traded) a 77 chevy and 300 dollars on it. someone out there will trade me for a first series 1/2 ton!

[1-ton of fun]

you could just use 1/2 ton axles under your truck...then you can bolt on discs too.

[1-ton of fun]

there is some info in the second half of this thread that i just found:

http://www.stovebolt.com/bboard/cgi-...=001233#000011