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Randall C
Randall C, ASE Master Tech
Category: Chevy
Satisfied Customers: 12744
Experience:  ASE Master, L1, 32 years, Diagnostic / Electrical Specialist
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What axle bearing (aka shaft bearing) do I need for my 1999

Customer Question

what axle bearing (aka shaft bearing) do I need for my 1999 Chevy Blazer. There are 3 different differential listed for my model year. Which one do I have??
Submitted: 4 months ago.
Category: Chevy
Customer: replied 4 months ago.
GM Part 12471606 but local auto parts store has no way to cross reference that part number. They need to know if Diff is 7.5, 7.6, 8.5, or 8.6. Diff case tag has rusted off long ago since this Blazer spent several years in upstate NY.
NEED answer ASAP or I'm cancelling request and requesting my money back.
Expert:  Randall C replied 4 months ago.

That bearing number crosses to a 7.625 rear axle

Customer: replied 4 months ago.
Thank you much. Chevy part number was from GM parts web site based on Vehicle VIN. Thanks again.
Expert:  Randall C replied 4 months ago.

Your welcome, It really is listed as a 7 5/8th but is the 7.625. Now, if you locate the RPO code sheet maybe on the drivers door or in glovebox etc, its the 3 digit codes begining with a G as shown in this link

Expert:  Randall C replied 4 months ago.

The RPO list lable is very handy as it has all the codes for everything one may need pertaining to the vehicle

Customer: replied 4 months ago.
Thanks again. I thought that the G number was reference to ratio (mine is GU6 = 3.42) also have G80 (Limited Slip). Did help me with axle bearing or "C" or "K" code.
Expert:  Randall C replied 4 months ago.

Not following, I was answering off your part number you said was correct. Just a little confused on your reply. Let me know, Thanks