Here are a couple of old threads related to 1946 1/2 ton rear axle bearing and oil seal removal that may have some helpful info. They are older and several of the pictures originally linked are no longer available, but the conversations may offer some help with your question. Also below is a link to a 1941 Shop manual which provides axle bearing and seal removal/installation instructions. The 1941 is the same as your 1946.

Removing rear axle bearing by cmayna

1946 1/2 ton rear wheel seal leak by Missoula

194 Chevrolet Shop Manual - How to Remove/Replace Axle Shaft Bearing

Haven't been able to locate any videos of the operation, yet. wink


~ Dan
1951 Chevy 3 window 3100
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