I have a 96 GMC 4 door dually with a block-long driveshaft. It has a carrier bearing in the middle, mounted in a U bracket to the frame. The bearing itself is fine, but the rubber bushing it rides in is rotten. Looks like the entire assembly has to come out, then split the drive shaft to remove the bearing. Which means new u-joints. And the bearing is probably frozen onto the shaft, good opportunity to mess that up getting it off. It would seem to me an easier fix would be some sort of two-piece rubber bushing; take the U bracket off, peal out the old rubber, place the new halves around the bearing, and replace the bracket. Anyone done one of these? Does such a part exist? Thanks!