Rockauto crush sleeve eliminator for 93 Ramcharger 9.25 rear axle. There is a link on that page for installing the kit and checking the pinion.
http://www.rockauto.com/catalog/moreinfo.php?pk=4031295&cc=1097210
it looks like pretty much the instructions for installing a new set of gears or rebuilding an axle. i guess the jobs are pretty much the same