If your car is mostly stock it will be the difference from running a 14.80 w/ 3.73 to about 14.50-14.60 w/ the 4.10's.
My old AOD w/ 3.73's...i was dissapointed the day i drove it from the shop.
4.10 is optimum 1/4 mile gear for AOD or t-5 car.....r's about 5500 through the traps...
R's on the e-way..about 3 grand at 75
2 tenths is about 2 cars worths racing....
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4.10's,long tubes & 75 shot...Goes 12.50's
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