My TJ has a 4" lift with 35s and stock 3.07 gears, 3 speed 32HR auto trans, Dana 35 rear, Dana 30 front. It has serious power loss but it's a daily driver and used on the highway a lot. I am having it regeared and the shop recommended 4.88 gears in order to return the power to stock levels. They said this will allow for better gas mileage as well. My buddy says it's gonna tach the hell outta the engine and rob me of MPGs. Does anyone know if this is a good gear ratio for my needs?