Information can be found here on this setup: (Click Me)
3.40 / 2.05 / 1.31 / 1.00 / 0.79 (4.0L Engines)
3.72 / 2.20 / 1.50 / 1.00 / 0.79 (All Other Engines)
I briefly had these gears in my truck until it exploded (poor rebuild, wound up sticking another 4.0 M5 in). The short period of time that I was able to drive the truck with the shorter gears in the transmission was pleasant. Other folks have pulled this swap off successfully, so it is worthwhile.