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75gmc454 · 02-08-2011, 10:09 PM

That sounds good Bob.

I think I have found what the problem is. Someone has put shims under all rear mounts for some reason. That caused the A/C pulley to rub that front crossmember. Then someone welded those tabs on the drivers side motor mount to raise the front of the engine. I am going to start over by finding the right mount and taking out all of those shims and see what happens.

I drove the truck today, and I cannot get the front drive shaft to stop turning. I have the truck in 2wd and the hubs unlocked but it still turns. It is not the front axle because I jacked up the truck and they are unlocked. The problem is with the transfercase. Any ideas?

02-08-2011, 10:09 PM	#83
75gmc454 Registered User Join Date: Oct 2006 Location: MS Posts: 479	Re: 67 gmc 4x4 That sounds good Bob. I think I have found what the problem is. Someone has put shims under all rear mounts for some reason. That caused the A/C pulley to rub that front crossmember. Then someone welded those tabs on the drivers side motor mount to raise the front of the engine. I am going to start over by finding the right mount and taking out all of those shims and see what happens. I drove the truck today, and I cannot get the front drive shaft to stop turning. I have the truck in 2wd and the hubs unlocked but it still turns. It is not the front axle because I jacked up the truck and they are unlocked. The problem is with the transfercase. Any ideas?