the taco tranny 5 speen r150f can be used to make a hybrid trany in conjunction with your 151 use the 150 bell and front housing with the spacer plate the place your 151 tail housing behid this they bolt right up...this lets you retain your 23 spline gear driven case with out having to get a adapter to switch from the chain driven case
if you can get any motor the y not get an i force v8 out of a tundra that would be the ultimate motor in a toyota rock crawler IMO
