Search results
-
4.56 to something
Hello everybody, I have a 73 GMC K25/2500 with a SM456 trans. In the rear end it has 4.56 gears. I am wondering how hard it would be to swap these out with something like 3.56 or 3.73? So that it is a little easier to drive on the highway, I don't need the 4.56 as I am not going to pull...- Adamds86
- Thread
- Replies: 12
- Forum: Differential & Driveline
-
Frame support brackets
Hello all, I am looking for replacement brackets. They are above the rear leaf spring shackles (front of rear leaf spring) Just wondering if they sell this bracket. 1st picture is of the broken driver side bracket. Second picture is of the passenger side that is still intact. Any help is...- Adamds86
- Thread
- Replies: 3
- Forum: Suspension, Steering & Brakes
-
Hello everybody, 73 GMC K25 questions
Hello everybody, I just acquired a 1973 GMC 3/4 ton long bed truck. I have a couple of questions about it though. Trying to figure out what transmission I have. It is a 3 speed manual with a granny gear. The shifter goes all the way left and up is granny low, straight down from there is 1st...- Adamds86
- Thread
- Replies: 3
- Forum: Introduction
