Hey guys, I've got my '83 GMC Suburban K2500, and I'm not sure how to find what rear end ive got (without counting the teeth on ring and pinion). I don't have the truck with me at the moment (I live in Ohio for school, truck is home in Vermont until next month when I get it out here). And I'd like to see if I've got 3.73's or 4.10's. I've got the VIN: 1G5GK26M8DF517698. And the option sticker from the glove box. Any help is appreciated, if there's no way to find out using this info, just tell me and I'll physically check the teeth when I have the truck with me again.
