G8 Diff Question

Drivetrain discussion including Transmission, Differential, Driveshaft, and related items.
Post Reply
bluethunder
Posts: 165
Joined: Tue Jan 10, 2017 12:43 pm

G8 Diff Question

Post by bluethunder »

Will a diff from a G8 work in our cars? Do you need a auto car or a stick shift? What ratios do they have? Thanks
cal30_sniper
Posts: 103
Joined: Thu Aug 04, 2016 1:17 pm

Re: G8 Diff Question

Post by cal30_sniper »

Yes, it will, but the standard G8 diff is the same 2.92:1 ratio as what you already have. If you wanted a better ratio, you'd need a G8 GXP rear, which is going to be pretty rare. It's a 3.27:1 ratio for automatic cars, or 3.70:1 for manual cars.

A newer Camaro diff will also work. They come in 3.27:1 for autos and 3.45:1 for manuals, and some other rarer ratios. Watch out for the 3.27:1 diffs. The V8 cars got LSD differentials, but a lot of the lesser models got open ratio 3.27:1 diffs. There's a tag on the differential that says what its ratio is, and if it's Limited Slip.
-2011 Caprice 9C3: Mirage Glow Metallic, 63k miles
-2011 Caprice 9C1 (Gone)
-1973 Firebird Formula, restoration in progress
-1986 K30 Suburban 8.1L/NV4500, the toy hauler and wheeler
bluethunder
Posts: 165
Joined: Tue Jan 10, 2017 12:43 pm

Re: G8 Diff Question

Post by bluethunder »

Thank you for sharing that info. Very helpful!
Post Reply