[bigleo69]

i would try 3.27 gears and make the axles 31 spline
the weak link being the u-joint
3.73 are sweet but running highway with that much torque has to be very loud.
the 8.8 is strong but the 9" would fit you fine if you were racing on the strip.
strictlly street either leave it be or go to a 3.27 highway rpms will be just as sweet but tamer