The part number listed on my Rear Bearing Retainer is 591634. I don’t know the difference between the two. Maybe a fellow “Bolter” could tell us.

[Edit] I looked up the parts in the Master Parts Catalog and the casting is listed as 591634 and the part number is listed as 591633, one and the same!

Last edited by Phak1; 08/28/2020 1:04 PM. Reason: Updated info
Phil
Moderator, The Engine Shop, Interiors and Project Journals

1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube
Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes
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