clutch-cone or gear driven limited slip in the F150 FX4???
who makes the limited slip for Ford???

if clutch type unit then is it the traction lock diff or differnet name these days???

the only cone type i know of is the Auburn...

gear driven the True Track comes to mind but i assume this would be to good to be true...

not a fan of the clutch type units,unless it is like the old Spicer-Dana Power Lock diffs...

thanks...

 

If you have the FX4, you do not have a limited slip, you have a locker.

 

is that the electronic locker then??? activated by turning the truck into 4x4 mode???

 

As stated in the owners manual, while in 4x4, and below 25 mph, you pull out on the ESOF switch. That locks the rear. Go over 25, move to 2wd, or push the switch in unlocks it.

 

thanks,it is my buddies truck and he hasn't read the manual yet,just got the truck yesterday and the dealer couldn't tell him a darn thing about what type of differential,he just asked me to find out... the hard way it seems...

 

Tell him not to be so lazy...........................

 

What is the ESOF switch and were is it located. I have an 04 f150 and have never heard of that switch.

 

ESOF is electronic shift on the fly (a rotary dial), as compared to MSOF, manual shift on the fly (a stick). ESOF if you do not have a stick 4x4 shifter would be on the dash between the steering column and the radio/heater/cooling controls.

 

Ok so when the truck is in 4 wheel drive just pull out on that switch? do all fx4s do that? and if I am muddin and go over 25mph it will come out of locker and go to LS?

 

Only the 09 up FX4s have the locker. At best you have a limited slip rear on your 04.