The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Identifying rear diff on 1980 C20. LSD or not?

**mongocanfly** · 09-05-2019, 09:46 PM

("3 pins on the center of case were the ring gear bolts and no windows = gov-loc posi unit .")
what k30 posted is what you have.....G80
it is not a open diff..it the GM version of a posi

09-05-2019, 09:46 PM	#4
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,597	Re: Identifying rear diff on 1980 C20. LSD or not? ("3 pins on the center of case were the ring gear bolts and no windows = gov-loc posi unit .") what k30 posted is what you have.....G80 it is not a open diff..it the GM version of a posi __________________ Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver