Thanks for the comments. We’ve got the truck torn down and getting ready to start putting it back together. Trying to figure out what gear ratio it is. The stamp on the passenger side axel tube is
PH 145W92 W (I think). It also has GM83 on the drivers side flange. Any help is appreciated...
Hi, I am new to the forum. Just picked up a 1979 GMC k15 stepside. My son’s dream truck. He turns 16 in a couple of months. Looking for suggestions and ideas of where to start.