Final Drive Rebuilt for CJ750 / M72 - Assemble The Ring Gear
24 April, 2023
The distance bushing is made out of 1"x0.12"x0.76" DOM Mild Steel Tube A513 and drilled to an internal diameter of 20mm on the lathe. The old one was rather sloppy and was not perfectly even.
Check the distance and the seating of the driving gear. I have put a large o-ring inside the wheel hub to push the hub towards the cover. This ensures the ring gear always seats against the cover and maintains proper distance of the gears.
The CJ750 FD does not use the bronze slitted washer to keep a minimal distance between the ring and pinion gear, and with the o-ring on the wheel side, the ring gear never slides towards the pinion.
The M8x14 1.25 bolts, class 10.9, to connect the hub with the ring gear are secured with red loctite 272.
The bolts are torqued to 32Nm.
Clean the casing and cover surfaces and place the seal. Check the orientation as there is only one valid hole pattern. I used the one with EU quality from ural-zentrale.
