Final Drive Rebuilt for CJ750 / M72 - A New Axle
24 April, 2023
The reason for a side-to-side play in the rear wheel is because of the play between the wheel bearing and the axle. The bearing inner diameter is 20mm, and the outer axle diameter is about 19.95mm.
For the new final drive, I will make a new axle out of 4140 steel to have a transition fit. The bearing should slide without play on the axle.
To center the hole for the split, the drill is positioned to have the ruler horizontal.
Top one is the new axle.
To make the access to the nut easier, I made the axle a bit longer and made a large distance washer.
Make the distance washer the same color as the nut.
Test fit. No wheel play and the axle easily slides in and out.
Passed.
Easy access to the nut.
