Chevy front drive shaft
I need info on a 1987 Chevy 3/4 ton V-20 4X4 pickup. I have just installed new axle shaft U-joints, ball joints, wheel bearings, tie rods, and U-joints to the front drive shaft including CV U-joints. The drive shaft is in the same place it was when I reinstalled it. I took it out in the muck and it ran great, it wasn't that nasty. Then, as we were coming out the vibration started on the front drive shaft. When I inspected it, I grabbed the shaft where it telescopes in and out. And there was an up and down and side to side movement where it telescopes. Could this be the vibration? If so, do I need a whole new drive shaft? I would appreciate any help.