8.25 Gears

Before you get a set of 2.94 or 3.21 gears for your 8 1/4, you should double check that those gears will fit in your 2.71 carrier. I know the 2.45 gears use a different carrier meaning 2.94 and 3.21’s won’t fit. I’m not sure if 2.71 uses the same size carrier as the 2.94 or the 2.45 though.

Also, is your 8 1/4 originally out of an A body? If you don’t know, it might be out of a newer Jeep? The spline count changed in 1997 from 27 to 29.

It's a 27 spline