SOLIS

Hey all - I recently purchased a 2008 F150 FX4 with a 6" lift. Any suggestions on how I can find out if the gears have been replaced/upgraded?

I've had 4x4s in the past, but never one with a lift. I know the previous owner dropped some cash on the truck - Amp Research Power Steps, 6" RCD Lift, Driv Wheels, 35" Toyo MTs, so I'm thinking he might have dropped the coin to regear it too - but I don't know.

Any advice/suggestions would help.

Thanks -

ray h

Two ways to tell.
Count the number of times the driveshaft rotates every time the tires rotate. ex: if the driveshaft does 3.5 full rotations as the tire does 1 rotation, youve got 3.55s, if it goes around 4.1 rotations, youve got 4.10s, ect.
The other way to tell is to pull the diff cover and read the teeth numbers off the ring and pinion gears and divide it out to come up with a ratio. The number of teeth will be engraved on the outer edge of the ring gear and the end of the pinion gear. If you cant find the numbers you can count the number of teeth and divide it out.

Obviously the easiest method is to count the driveshaft rotations.

SOLIS

That sounds simple enough. Thanks Ray.