YOU DO NOT NEED to drop the exhaust for the carrier bearing.(w123) jack up the rear end, support w/ stands,(if its on ramps, you cant rotate the driveshaft) put car in N and crawl under w/ 15mm & 17mm wrenches. also a 12mm socket and at least 6" extension. remove the 3 bolts which attactch the flex disc to the rear diff. remove 2 bolts that are on bearing support. pry the flex disc off rear end, remove to the rear of the car.

to do the bearing, a big puller is required. I used a pvc tube to drive mine on, but it was weak. a 1 1/4"X10" pipe nipple will work.
I would order a new bearing, mount, and the 2 metal shields which are on either side.

__________________
1984 123.193 372,xxx miles, room for Seven.

1999 Dodge Durango Cummins 4BTAA 47RE 5k lb 4x4 getting 25+mpgs, room for Seven.