In my '64 Carryall 4x4 I'm running 3.55s in a Dana 60 with 35" tires, a '74 SM465 trans and a '74 NP205 Xfer case. Engine is a 383 stroker.
never use first gear on the street, altho the combo does take a mite of clutch work to start off in 2nd, however, I can cruise in 4th at 70-75 mph at mid-2K rpm. Gotta do the math..
