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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Sep 2010 Posts: 8 New Guy | | New Guy Joined: Sep 2010 Posts: 8 | I am having a difficult time trying to find what the rear end I have under my AD truck is out of. I will tell you what I do know. I have the following numbers off the rear end: GM 24, K116, 389486 (with letter N above it), on the tube it says HI 05 25 W. I have tried searching for these numbers in the codes but have had no luck. I have jacked up the rear end to spin the tires. They spin opposite directions so I have an open differential. Any help is greatly appreciated! | | | | | Joined: Oct 2003 Posts: 5,152 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Oct 2003 Posts: 5,152 | A photo of the rear cover would help a lot.
1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble... | | | | | Joined: Sep 2009 Posts: 48 Wrench Fetcher | | Wrench Fetcher Joined: Sep 2009 Posts: 48 | I went to the chevy dealer parts dpartment, they have access to all the info you need, I was in the same boat and wanted to verify what the seller told me after I bought my rear,, they were more than willing to help..I will look for the printout they gave me but I kinda think I chucked it, good luck hope this helps... | | | | | Joined: Sep 2010 Posts: 8 New Guy | | New Guy Joined: Sep 2010 Posts: 8 | A photo of the rear cover would help a lot. Here is a picture of the rear end. http://tinypic.com/r/314avjn/7 | | | | | Joined: Sep 2010 Posts: 8 New Guy | | New Guy Joined: Sep 2010 Posts: 8 | The only thing I can find with a "N" by the casting number comes on a Chevelle rear end. I am going to double check the "HI" to see if it might be a "KI". If anyone else has any other ideas please let me know what I can try. Thanks! | | | | | Joined: Sep 2010 Posts: 8 New Guy | | New Guy Joined: Sep 2010 Posts: 8 | | | | | | Joined: Oct 2003 Posts: 5,152 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Oct 2003 Posts: 5,152 | If you google 'gm rear axle identification' you'll get a number of links to drawings of rear covers and what rear they are from.
It looks to me like a 7.5 from an S-10 but I may be missing something.
1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble... | | | | | Joined: Sep 2010 Posts: 8 New Guy | | New Guy Joined: Sep 2010 Posts: 8 | If you google 'gm rear axle identification' you'll get a number of links to drawings of rear covers and what rear they are from.
It looks to me like a 7.5 from an S-10 but I may be missing something. I looked at a lot of these links. The picture of the rear end I have has the "eyebrow" shape which every link says it's a 8.2 10 bolt. I did some checking and found out that a chevy G10 van has the HI code, now I am trying to research if these vans came with an 8.2 10 bolt rear end in 1966. (1966 is what the K116 number tells me) | | | | | Joined: Oct 2003 Posts: 5,152 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Oct 2003 Posts: 5,152 | The picture of the rear end I have has the "eyebrow" shape which every link says it's a 8.2 10 bolt. I went back and rechecked the links I initially looked at and none of them showed the eyebrow. However I checked a few more and did find the eyebrow as an 8.2. I think you have your answer.
1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble... | | |
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