View Single Post
Old 02-17-2022, 02:21 PM   #9
Pick121
Registered User
 
Pick121's Avatar
 
Join Date: Jan 2021
Location: Tahoe City, CA
Posts: 166
Re: Rear Differential Casting Number -- How to Decode??

Quote:
Originally Posted by Kateye_Kenzie View Post
Just spoke with the boss... there are none of those numbers on the axle and that's why he only gave me the casting number... And the pinion is broke out of it and missing so I can't rely on that either. Does anyone know what was in these trucks out of factory? I'm talking to the GM Heritage Center right now but they take weeks to reply...
Hello, not to challenge “the Boss” but, the rear axle stamp numbers are different from the casting numbers, are easy to miss if covered in road dirt & grime. They may be on the axle tube itself. Might find them with a closer look, wire brush/degreaser. See attached photo for example. It is possible they might not be on the axle, or unreadable, but if he can find them it will be way easier to determine the rearend
Attached Images
 

Last edited by Pick121; 02-17-2022 at 02:22 PM. Reason: Typo
Pick121 is offline   Reply With Quote