I have a 2003 F-150 Supercrew King Ranch 4x4 with the 5.4L Triton and it has a 3 inch body lift with 35x12.50 mud tires. My truck still has the stock 3.73 gears in it and its alittle slow. So what gears should i get so that it will be not as slow but will still do good in the mud?

Thanks,
Paul