Why are you debating laws of physics? If you read my posts and absorbed it the way I posted which states the traction is equal until one spins. If none spin the torque to each axle is equal. If you know how a differential works why would you post here?Go watch videos of phoneguy at BG. His limited slip was shot and he had a hard time doing a proper burnout yet the was still able to knock down decent 60' times with a slow spooling turbo. You can search the service manual for the test to determine if you're limited slip is shot. Id imagine it's similar to the method I described in the last post that a certain break away tq is required or it's no good. You can put a lug at 12 or 6 o'clock and use the torque wrench at 3 or 9 o'clock to easily simulate the torque at the center of the axle shaft because the leverage is cancelled on both planes when there is a 90 degree angle. It will work in any location if you can maintain a 90 degree angle.It remains equal till one wheel slips? Unless absolutely EVERYthing was perfect. Plumb and square roads, with zero rocks, no road crown, no water, precisely the same PSI in each tire, with equal tire wear etc. etc. which we all know never happens. Basically 99.9% of the time one wheel will always have a little more traction than the other. Sooo.... if this defeats the entire purpose of a posi, why was it ever invented? I, like most people think, that once you hit it hard, it shocks the clutches into grabbing, (something you don't do on turns, so the slip test doesn't count, because that's not how it was intended to be operated in the first place) thus locking both wheels together. If it didn't do this, then you're saying that an open and a posi are absolutely identical. And they can't be. What's the point of a diff that doesn't lock wheels together under torque?
Then why when you see a guy floor it in an open diff car, one wheel spins forever, equaling zero traction, and when the posi cars floor it, the car hooks up and goes forward? If the clutches are doing absolutely nothing for the wheel spin at launch, then it's behaving exactly like an open diff: no control of wheelspin at launch. Which doesn't make any sense. So if they don't control wheel spin at launch, how would you ever know your clutches are worn?
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