I’m glad I read allot of these post, otherwise I wouldn’t know I just screwed up and just installed straight 90 weight mineral oil in the rear end. Fortunately I have not driven it yet as I still need to install my engine.

Do I need to flush it out or is draining sufficient?

Last edited by Phak1; 11/11/2020 1:18 AM.
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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