Ok I have a 1995 gmc k1500 with a 4.3 engine has a vibration when I accelerate and sometimes I feel it going up hills seems to smooth out at say 55mph I did replace shocks all ball joints new passenger side wheel bearing hub and just a few days ago drivers side cv axle it seems to shift ok little kick sometimes from 2nd to 3rd but other than that shifts good. sometimes when you turn slightly it seems almost like the tire on drivers side skips but not sure that's what it is doing, I checked that wheel bearing on that side no play. The vibration is there in or out of 4 wheel drive. the front brakes where replaced about a year ago as where the rotors with powerstop rotors and ceramic pads. I am at a loss this truck is in really good shape and I don't beat it at all. thanks in advance for any info.

 

Have you checked the 4wd actuator to make sure it's disengaging?

 

no not really but the light engages when I put it in and goes out pretty sure that's not it normaly I can tell by the different sound when its engaged.

 

Yes... The switch in the transfer case dictates the light. The floor shift puts the transfer case in and out. I'm talking about the actuator that mounts to the front axle.

 

I know what your talking about not sure how to check it.