Join Date: Sep 2004
Location: Naperville, IL, USA
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Not sure about ancient posi-traction...
But most diffs these days are either "Torsen type" in that they use planetary gears to distribute torque...or they are "clutch type" in which case they use a series of many clutch discs that rub together. They *usually* move together (in a straight line), but when the wheels turn at different speeds, they lock up. This will cause the wheels to again spin at the same speed.
UNLESS, you reach the break-away torque, in which case, the whole thing lets go, the wheels will spin at different speeds, and you're back to an "open" arrangement (this typically only happens when you make a REALLY slow U-turn). This is also why most clutch type diffs make loud clunking sounds around corners because they are *not* reaching the break-away limit (since they are setup to drift) and thereby forcing the inside wheel to spin at the same speed as the outside wheel.
Anyway, Quaife is AWESOME for anything but drift. I would absolutely love one $$$
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