Rear Axle Identification

MUSCLEALMIGHTY

Apprentice
May 23, 2011
55
0
0
CT
REAR END QUESTION...NEED HELP!!!!

I recently acquired a rear end from a yard. Problem is....it wasn't in a vehile...so i have no idea, what it came out of!! My friend assures me , its the same rear end as the malibu.....but STRONGER! i got some codes off the the rear end. I hope someone on here can help me out! Here goes........................

L151
6769
GHC 004 2
2345
CON 2

These are all the numbers/characters i have! I will be cleaning/stripping the rear end over the weekend. Maybe, i will find more....who knows. Can someone help me? PM me. Thanks in advance............
 

MUSCLEALMIGHTY

Apprentice
May 23, 2011
55
0
0
CT
Here are some pics of the rear end, i ust got for my malibu!! Hopefully, it works. i am hoping someone on here, an tell me, if this is an 8.5rear. If not, what type! Thanks in advance........
 

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MUSCLEALMIGHTY

Apprentice
May 23, 2011
55
0
0
CT
Here are 2 more pics! I hope these help. I couldnt figure out, which ones were the best...so i chose them all!!
 

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pontiacgp

blank
Mar 31, 2006
29,270
20,377
113
Kitchener, Ontario
it's a 10 hole cover and round so it's either an 8.2 or an 8.5 so you need to remove the cover and measure the crown..does it have bolt in axles?..if it does it's an old's rear end
 

MUSCLEALMIGHTY

Apprentice
May 23, 2011
55
0
0
CT
Thanks! What should the crown measure at...and what is that confirming? What did an 8.2 come OUT of? I know either way, its stronger than the 7.5! I will go to my garage later and CHECK, to see if it is bolted on axles!! I know nothing about this. I just do the bodywork...and drive em! Lol Thanks again......
 

MUSCLEALMIGHTY

Apprentice
May 23, 2011
55
0
0
CT
Ok...but what about what u were talking about in the previous message?
 

pontiacgp

blank
Mar 31, 2006
29,270
20,377
113
Kitchener, Ontario
the diameter of the crown is what they go by when they talk about the size of the differential....the size of the bolts for the crown gear will also tell you the size of the diff, the 8.5 crown bolts have an 11/16 head and an 8.2 have 9/16...the olds rear ends didn't have c clips and used bolt in axles.
 

gp02a0083

Master Mechanic
May 17, 2011
308
3
16
pontiacgp said:
the diameter of the crown is what they go by when they talk about the size of the differential....the size of the bolts for the crown gear will also tell you the size of the diff, the 8.5 crown bolts have an 11/16 head and an 8.2 have 9/16...the olds rear ends didn't have c clips and used bolt in axles.


thought the olds 7.5 and 8.5 rears were c clips :?:
 

pontiacgp

blank
Mar 31, 2006
29,270
20,377
113
Kitchener, Ontario
"The Olds A bodies went to the corporate 8.5 ten bolt in '71. These were bolt in axles from the factory"

the problem with the olds is there is hardly any gears out there for them...
 

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