im getting ready to install some new gears and just double checking on what gears to buy. i was told 3.55,3.73. but i was thinking maybe 4.10. what i have is a 98 f150 2 wheel drive with 18 by 9.5 wheels and 285/60/18 tires my stock gear is a 3.08 now. i did the calculator so my actual gear is like a 2.84. the motor is a 4.2 so what im looking for is some towing power more than it was with stock wheels