I've got Cooper Cobra Z-rateds in the back, with AA for traction and A for temperature, 245 50 16's..they're low on tread but still legal, and with the 4.10's, anything past 1/3rd pedal on takeoff and I burn serious rubber. And even in the top rpms in first gear (say, 4500), flooring it still breaks traction til 2nd. I'd hate to see what cheap rubber would do....

well i got to say although i haven't had the liberty of driving a blower car with 4.10's i have owned 2 stangs with 4.10's and i have no complaints. with an average street tire i only ran about 2100rpm on the highway(60)mph and still got around 22mpg average so i say go for it:D :D :D

How'd you pull 2100 at those speeds?? My grandpa's Nissan with economy gearing can't do that! I do about 2500-2700 in overdrive at around 70 mph with my 4.10's.

Nixon, he's probably talking through a T-5. Since you are running an AOD you're stuck with one less gear than us T-5 guys ;) :D

Yeah but isn't the final gear an overdrive gear with virtually the same ratio, you just have an extra beefy gear somewhere in there, such as a 4:1 first?