Driveline Differential Instructions 10 Bolt 7 5/8 Open Bearings Numbers Transmission T-5 Service Manual My 3.37 Richmond Gears and Posi Installation Everything is stock and original from the T-5 Transmission to the rear wheels. Future plans include aftermarket drive shaft, posi and 3.73 or 4.10 gears. The posi and gears should be coming soon.