Axle Identification help - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 07-30-2003, 01:51 PM
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Axle Identification help

Hey guys, I am need of a bit of help. I just made a move over from the Jeep world to the Chevy side. I am trying to identify my front diff's - I just got a 1986 4x4 Sub. It looks like a D44 but has GM 11 stamped on the case. What is this thing? The rear is a GM 12bolt.
Thanks for the help
Steve
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post #2 of (permalink) Old 07-30-2003, 03:21 PM
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Re: Axle Identification help

If it has square ears on the bottom and balljoints it is a 10 bolt. If it doesn't have square ears it is probably a Dana 44.

Neither a Dana 44 nor a 12 bolt came stock in that year of a Suburban.

Stock, a half ton Suburban of that vintage would have 10 bolts front and rear.
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post #3 of (permalink) Old 07-30-2003, 03:51 PM
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Re: Axle Identification help

I hear you, it does have ears! :-)
It is a 1/2 Burb and I actually had been looking at the pics on Colorado K5 Axle Identification Chart and they did not show those ears. I found a pic on the www.drivetrainsuperstores.com site and it showed those ears you refered to.
I guess the guy before the guy I bought it from changed out the rear for a 12 bolt (GM is so nive to name these by the number of bolts) too bad he did not go with the 14.
Thanks again for the help
Steve

I included a pic of the GM 10bolt to help others with future references
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File Type: jpg 1158600-Gm10boltfront.jpg (55.1 KB, 17 views)
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post #4 of (permalink) Old 07-30-2003, 04:30 PM
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Re: Axle Identification help

Well, for that generation of truck I don't think they ever made a 14SF with 6 lugs. I can't ever remember seeing one anyway. So therefore, if they did swap it in it would've had 14mm lugnuts instead of 7/16" and they would've had to move the shock mounts and spring perches.

You should've found this in the archives as well. I'm sure I must've posted it here before.
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