What rear end gears for 904?

Well, I'm going with 3.92 gears. I pulled a 3.92 sure grip rear end out of an '01 Durango 5.9 R/T from Pull a Part for $128. It's a 29 spline 8.25 that's not leaking and looks pretty clean. Sure, I'll have to have it narrowed, but after an LPW cover and extra strength alloy axles, it should serve my needs just fine.