WANTED: 3:08 gears for Olds G-body 7.5 10-bolt posi

I have a mid 80's Olds Cutlass G-body rear in my Regal... 10-bolt, 7.5, posi, 2:41 gears.

(I assume it's 26 spline since it's a stock G-body rear)

I am looking for a set of GM 3:08 gears to swap in place of the 2:41's.