Its a 2002 F-250 4X4 with the vin 3FTNW21F12MA04299. Can anyone help me with this one?

Thanks!
Chris

 

https://www.ford-trucks.com/forums/4...lder_____.html

 

The vin will not show if you have limited slip or not but if you go to Kris' link above with the axle code from your door tag, there is a post there with the axle codes.

 

Dumb Question, witch one is the axle code?

 

At the bottom of the VIN tag on the drivers door post, there witll be an AXLE CODE directy under the word AXLE on this tag. D1 axle code = 3.73 limited slip.

 

Ok I found it, C1 — 3.73 limited slip, F-250/Excursion . So does that mean its a one wheel peel? Or is that a "trac-loc"?

Thanks again!!

 

Yea found it, it was too dark to see so I got a flashlight.

 

More like "limited grip". The best way to get it to lock up is with light brake pedal pressure with one wheel turning and the other wheel not. You will hear a slight "klunk" and both will grab. The operation is quite poor compaired to a Detroit Locker.

 

Thanks, I found the answer, it is like a trac-loc or posi. Right?

 

Trac-lock is the same thing as "posi".

 

Just raise the rear wheels with a jack and spin one tire. If the oposite tire spins the same direction then you have a track lock or limited slip. If is spins in the oposite direction then you have an open differential.

 

Not nessessarily true.

 

True more times than not unless you are dealing with a locker or similar mechanism.

 

viscous coupling and torsen/gear type limited slip differentials don't have this "feature", as you mentioned neither do autolockers or air/power lockers.

Since Ford doesn't use these as stock (they use clutch type), you are correct.