Ok guys im needing some advice hopefully from drivers that already have this set up. I have a 2004 f150 fx4 5.4 s/c with stock 3.73 gears running 33, soon to be 35. My question is if i should regear 4.10 or 4.56 i know that i dont need to regear for a 35 inch tire but i will be doin alot of traveling hauling a travel trailer that will be my home so its goin to be up there in weight. Im not worried about the gas milage cause lets face it nobody buys a truck for the fuel economy. I just want to prolong the longivity of my truck. I will be heading out west towards the rockys so its not like i will be doing strickly flat land driving. So if anyone has and insight on the matter weather from experience or not it would be much appreciated. Also no trading for a diesel isnt an option already ran that idea buy the wife and it was a no go. Thanx guys

 

does no one have any insight on this subject