My dad has a 02 F150 Supercrew with the 5.4, Now the truck is used basically for towing our RV's and my dad wants to put new gears in the rear end to tow better I guess as it has 3.55 limited slip in it now. Now I guess heres the weird thing I guess all the 5.4's in the f150's came with 9.75 rearends and not 8.8 what are some places to buy them besides summit and what brands make a gear for the 9.75? I think hes wanting to go to a 410 gear ratio or so. Any other places selling them besides summit?

 

jegs?
4wheelparts?
site direct?
andys ring and pinion?

 

wow.....with stock tires and wheels, that 5.4 will scream with 4.10's in it.......i would say a 3.73 would be enough....what does he want to tow?

 

rv's

 

awwww ^^^ i see it now.......

 

My dad is probably going to be lifting his tow rig 00 F-150 this spring..Its 4x4 off road, 5.4 with 3.55 gears. With 35-37" tires we were thinking 4.56 gears should do him well..

 

what are the stock tire size in inches? are they a 31" or 32" tire?

 

28ft Jayco Trailer with **** in it prob getting close to 6800# because it weighs about 6000 dry.