@82TwoHeadlight,
Funny you should mention about the trans shaft bearing, I was reading a off road mag last night and in it was an article about a tail housing for a 700R4 that you could buy that had roller bearings in it, one at the end of the tail housing end that bolts to the trans, and another one at the other end of the tail housing at the slip yoke. The bearings were the long cylindrical shaped roller bearings in a cage. They replaced the bushing bearings at that end of the stock housing. You had to buy their housing and the bearings came in it.
Reading this thread, how much vibration is it? Is the steering wheel shaking? Can you see it in any way? Could you put a cup of water in a holder on the dash and see the water rippling? I've not had any problem like that, I've got a long bed, except for a long time ago when my "swing" bearing was about to fall out of the truck. Is that what ya'll are calling a "carrier" bearing? The assembly that is in the middle of the short shaft coming from the slip yoke back to this assembly and then after that there is a long slip unit that the long drive shaft is connected to with a u-joint, then back to the rear end. My "swing" bearing is a rubber thing encased roller bearing that is pressed over the shaft that comes in a bracket that bolts to a cross member under there. That thing?
Yeah, that's what was vibrating and about to fall apart. The rubber and the bearing had disintegrated and was making a lot of racket under the truck. The guy at the repair shop said, "How the hell did you drive it like that? When we unbolted the bracket from the cross member it all fell onto the floor!"
