Where do you look on the rear end/ axle to determine which one to get from a junk yard? I have been told there is a number on it, but I can't locate it.

2000 Blazer with automatic and LSD rear end.

 

Look in the glove box, should be listed in there.

 

It is called a Service Parts Notification

It has the VIN followed by 107.0 a CS10506

Then a matrix that is 8 rows by 11 columns of three alphanumeric character strings

Followed by

BC/CC U 379E

Is there somewhere that decodes this or tells me which is the rearend?

 

Look for a G** number. You most likely have GU6-3.42 or GT4- 3.73. G80 is the limited slip.

 

There is a GU6 followed by a G80.

Thanks.