I dont know where you would of heard that. 4;10's is the only way to go with an auto. I would suggest doing gears first it the best mod you will actually feel when driving the car. 1st gear slower thats funny! :headscratch:Sounds good!! ...I thought 4.10's would suck for an auto? I heard 1st gear would be slower??? Idk 4 sure tho..