[ScottyB1]

I recently had a transmission (AOD) replaced and 3:73 gears installed at the same time. I spent about $230 on the gears (including the bearing installation kit) and about $400 in labor. However, the labor included the tranny install too. I would guess about $400 for parts and labor would be reasonable. My car was a completely different car to drive afterwards. I got the motive, performance plus gears and a monster motorsports transmission. It pops second any time you want it to and sometimes when you don't.