I have orderd 325x65xr20 NItto Dune Grapplers. 20inch MM 951's
and a Fabtech 6inch Lift.

I have a 2007 f150 screw with 3.55 limited slip

do i need to regear?

Thanks
Guys!

Justin

 

Those tires are almost 37" tall... that's really big for a 3.55 gear. I only have 35's and a 3.73 gear and I can't wait to regear. You don't need to regear, but once you drive the truck you're definitely going to want to... it's gonna be a slug.

 

... come to think of it. Are you sure those tires are going to fit?

 

You don't have to do anything. Will you want the gears? Oh hell yeah. Would it be better for your truck? Oh hell yeah.

 

How much would it cost? and what gears should i run?


Justin

 

Cost of gears will vary on location but I paid $1600 including a Mag-Hytec differential cover and Precission 4.88s.

35s = 4.56s
37s = 4.88s

 

32 = 4.30s

37 = 5.13