what type rear end?

[merlin3]

is there a way to run the numbers from my axle housing to see what it is out of before ordering outer seals,bearings and brake shoes? it I am not sure it is stock,72 c10 2wd.thanks

[LockDoc]

If you think it has a '67-'72 rear, read this thread...

http://67-72chevytrucks.com/vboard/s...d.php?t=578793

LockDoc

[merlin3]

thanks lockdoc.none of the numbers match up though.what does GM65 mean? that is stamped on the pumpkin on drivers side.the only stamp on the tube reads BMW247.

[GASoline71]

Post some pics of the rear cover.

Gary

[merlin3]

the cover looks like this.thanks for the help.

[Fitz]

Originally Posted by merlin3

the cover looks like this.thanks for the help.

That looks suspiciously like a GM 12 bolt 8.875P Car diff from a Chevy impala. The 8.875T Truck diff is a different shape. Contrary to the popular urban myth, the 12 bolt designation refers to the number of bolts that hold the ring gear to the carrier and has absolutely NOTHING to do with the number of bolts that fasten the cover to the diff housing. That was just evil humor on the part of the engineers who designed the 12 bolt diff to confuse the uninformed, the gullible and the BS'er.

[merlin3]

your right Fitz,definitely from a car mine does not have the mount for the track arm.i am wondering if this is going to be a loosing battle trying to find out what it is or should i just find a new unit [no used parts here].

[Fitz]

Originally Posted by merlin3

your right Fitz,definitely from a car mine does not have the mount for the track arm.i am wondering if this is going to be a loosing battle trying to find out what it is or should i just find a new unit [no used parts here].

The 8.875P is a strong diff. If you can weld, Currie sells loose housing brackets including the mounts you need for the Panhard bar. Installing these is probably an easier way to convert what you have to fit your truck. There are lots of diff shops here in Southern Arizona but there isn't one I would trust to weld those brackets on and for good reason. They simply have no stake in the outcome! If you tack them in after aligning everything at ride height then have a certified welder finish them that is the best way.

[GASoline71]

Originally Posted by Fitz

That looks suspiciously like a GM 12 bolt 8.875P Car diff from a Chevy impala. The 8.875T Truck diff is a different shape. Contrary to the popular urban myth, the 12 bolt designation refers to the number of bolts that hold the ring gear to the carrier and has absolutely NOTHING to do with the number of bolts that fasten the cover to the diff housing. That was just evil humor on the part of the engineers who designed the 12 bolt diff to confuse the uninformed, the gullible and the BS'er.

I have explained that to some of my buddies many times, and they still think I'm pullin' their leg. Oh well. Just like one of my Ford buddies that calls BS when I tell him that the General made a Chevy 302.

Gary

[Fitz]

Originally Posted by GASoline71

I have explained that to some of my buddies many times, and they still think I'm pullin' their leg. Oh well. Just like one of my Ford buddies that calls BS when I tell him that the General made a Chevy 302.

Gary

It's so much fun making fun of the BSers and the Found On Road Dead guys, isn't it?

[merlin3]

thanks for the help guys ,i think i have enough info to call Summit and order seals,bearings and shoes.