So have got more time to play with projects and have found more resources for the 2 speed rear end swap out idea I had but jus don't know exactly what i want for the speed/power deal cuz what I'm shooting for is to be able to do at least 60mph highway top end while still being able to move 20,000lbs up hill low end wise and I thought a 2 speed rear would help me out with that maybe cuz right now I have a single speed 7.20 gearing with 8.25-20 tires.... And one question I have if I swapped tires to 9-20 tires would that give me anymore speed top end?
