I have the V-10 and 4.10 gears,you will like the 4.30s as when in OD you are just up into the 2200+RPM range,at62mph, where the Ford gassers like to pull,2400 is perfect, with great throttle response,I would not go with the snow prep package as I ordered it for the stronger front springs and big rear sway bar,my truck sits about 1" higher in the front unloaded,everyone always says that thing sqats a lot!I put air bags in the rear just to keep it level even unloaded,(see pic)you will be really pleased with the truck and 4.30s especially if you stay around 11,000-12,000lb loaded.