08-03-2022, 11:09 PM
The spacer depth needs to match the bearing setup that you decide to use.
The roller bearing spacer you have should have started out @ 3/4" deep IIRC. This works with the 5/8" wide 1 1/8" bore LRJ 1 1/8" roller bearing fitted to later rear axles.
The earlier car ( '31 on) had a 5/8" deep spacer which works with the 3/4" wide factory fit MJ1 ball race on the 1" pinion.
In either case the pinion ends up in the same place axially vs. the pinion thrusts.
The roller bearing spacer you have should have started out @ 3/4" deep IIRC. This works with the 5/8" wide 1 1/8" bore LRJ 1 1/8" roller bearing fitted to later rear axles.
The earlier car ( '31 on) had a 5/8" deep spacer which works with the 3/4" wide factory fit MJ1 ball race on the 1" pinion.
In either case the pinion ends up in the same place axially vs. the pinion thrusts.