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!
