Your going to want more gear. I have a t56 and 4.10s, this month I'm jumping to 4.88s. My rpm on the freeway right now are 1800 rpm at 80mph in sixth gear. With my cam, I'm nowhere near my powerband. It really depends on your tire size too. I have a custom driveshaft that was built for me, 3 1/2 inches around with big joints. As for the rear end, I'm not sure. A ford 9 inch would be nice.