Ok I've got a 2002 Ranger Edge Auto 8.8" with 4.10 gears and a 3.0L. What my question is, is that I looked at my axle tag and also the axle code, and they both claim that I have a 4.10 non limited slip. Well the other day, I decided I would try power braking. It sure doesn't act like a non limited slip. I will go snap some pictures sometime of where I layed this rubber. Is it possible I have a limited slip and Ford made a mistake?

EDIT: This person had the same thing. http://www.cardomain.com/ride/394302

 

Easiest way to tell would be to jack up your rear axle and put it on jackstands. with the transmission in neutral, if you turn one wheel with your hands and the other wheel turns in the same direction, you have limited slip. If it turns the opposite direction, its an open diff.

 

so your saying you left two strips of rubber?

 

its the easest 100% way with out cracking the cover plate. and yes you can leave to burn marks with an open diff "SOMETIMES" you have to catch it just right

 

just because you leave two tracks doesnt mean you have limited slip. in low traction conditions, both tires can spin in an open diff. ive seen it and thats prolly wut happened with you. like zach said, you prolly caught it just right.

 

It works the other way too: I spin one wheel w/ my LS all the time.. Of course I'm still accellerating when I do this too!

 

Hmmm, I might just try that, It wasn't just that time that I spun both either. I've done again after that, and it's the same situation. It hardly ever just burns one. I'm sorry if I'm just stupid and/or ignorant.