my truck, 99 F150 4x4 had the gear ratio 3.73 when i first got it, but due to an attack from a ninja on his ninja bike from behind I regrettably swapped the rear end and the front differential with a Katrinafied 01 F150. This change gave me a 3.55 gear ratio. I have lost the power i used to have and would like to get it back or go better. I have 33"s on there and would like any and all advice on what I can do. mainly can I switch the gears and keep the same housing or do i need to go out and find whole new differentials?