Help me win an argument.

I have a video of my car doing a burnout through a parking lot, camera started at my MUSTANG on the rear bumber and all the way through its TWO shoots of dust in my open dif, 2.3 NA. Whats up with that?

unless someone has changed the rear its a open diff...the LSD diff offered in a 4 cyl turbo Ford was the SVO and the Turbo Coupe and Couger,..you said it made both tires spin when you ran the car on stands?? well thats becouse there was no load on the rear..you could have someone hold a tire then run it again and only one wheel will spin..but i dont racomend it sometimes if the diff fluid is heavy or cold itll make the drag stronger so it takes more force to hold one.....to the last post itll spin both wheels if you drop the clutch and the force (inertia) is enough to break the static friction of both rear wheels...and if there isnt a big traction differance IE one tire in dirt and other on pavement.....best way to see is pull half on off the road...one rear in the dirt..dump clutch and go and see if you leave black marks on the road and a trench in the dirt........also someone thought the clutch was making his spin both wheels..nope its not even a related part..just a fluke that its happening now...the clutch only will make it spin faster since itll grap and not slip when the torque from the engine is applied.....anyways sorry you lost the bet.....and the best way to see if you have an Open diff while the car is in the air is to put it in gear...and turn one wheel and watch the other wheel if it spins oposit of the one you are turning then its open..if it spins in the same direction as the wheel you are turning its a LSD unit..........................Hal

The trac lok unit has a series of clutch disks in it, that is what he was talking about, not the clutch that works with your tranny like Tealtiger was thinking.

And hes right, the ford 4cyl fox mustang wasn't offered with a trac-lok unless it was a turbo setup.

if you can manage to get equal traction on both tires then both will leave marks. very rare though. usually just one leggers are left. if you do manage to get both to spin then it wont last very long.