The only problem I have with 4.77's is how high it makes you spin on the highway. I've heard getting an AP2 tranny in an AP1 is like having 4.44's in the first 5 gears, but with a stock AP1 6th, which is basically all I would want. I really want to get 4.44's or 4.57's, but I dont want to spin 5k @ 70mph.