My gears are howl while accelerating over a certain speed range, but not all speeds, it's likely that the gears are worn due to lubrication failure or overloading. What is the best gear ratio to go with. I have a stock setup (4.10 ratio) right now & I do no off roading @ all. Rig is a 93 Landcruiser. Also can some ref me to a honest shop in the dallas fort worth area.