Is My Differential Working Properly?
#1
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Year: 1996
Model: Cherokee
Engine: 4.0L, CAI, Edelbrock Breather, Optima Yellowtop
Is My Differential Working Properly?
Alright my XJ is a '96 4.0L AW4 4x4 with a Dana 30 up front and a Chrysler 8.25 in the rear. I was driving to school today and got stuck at a light. The Light turned green, and I applied the throttle. My right rear wheel was on a patch of snow and my left rear wheel was on wet asphalt. My Jeep wasn't moving at all because my right wheel was spinning on on the snow. I thought limited slip differentials transfer power to the wheel with the most grip so why did this happen?
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Year: 1996
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Engine: 4.0
Common misconception. An LSD is not a Posi. There does come a point where it will do a "one-wheel-peel". My truck has a factory LSD and in deep snow it will act like an open diff. It applies traction equally only if going straight and both wheels have grip. If neither of these are true, it will apply fractional traction to the opposite wheel while the other spins. If one is one ice, it most likely would do as you say.
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Year: 1995
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Common misconception. An LSD is not a Posi. There does come a point where it will do a "one-wheel-peel". My truck has a factory LSD and in deep snow it will act like an open diff. It applies traction equally only if going straight and both wheels have grip. If neither of these are true, it will apply fractional traction to the opposite wheel while the other spins. If one is one ice, it most likely would do as you say.
But since it did it at a light like you described, it sounds like an open diff or the lsd doesnt work anymore.
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Year: 1996
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Actually, I was not entirely correct. I said "an LSD wasn't a POSI". Actually they ARE the same. Oops, brain fart. My statement on how an LSD works is accurate though. As has been stated again, there does come a point where an LSD will spin one tire only, however SOME traction should be going to the other wheel. It may be a tiny bit, like 5% power or so, but unless there is something blocking the tire, like a good sized rock or something, you should have moved a little bit.
How did you get unstuck?
Sounds like you may have an open diff or worn LSD.
How did you get unstuck?
Sounds like you may have an open diff or worn LSD.
Last edited by black_771; 12-16-2010 at 03:59 PM.
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That's not quite right either.....Posi IS a LSD. Posi or Positraction is a Chevrolet term or nomenclature for their version of a limited slip differential.
There are 3 basic types/kinds of differentials: Open, Limited Slip and Locking.......and in that order from least to most traction.
There are 3 basic types/kinds of differentials: Open, Limited Slip and Locking.......and in that order from least to most traction.
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Year: 1995
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That's not quite right either.....Posi IS a LSD. Posi or Positraction is a Chevrolet term or nomenclature for their version of a limited slip differential.
There are 3 basic types/kinds of differentials: Open, Limited Slip and Locking.......and in that order from least to most traction.
There are 3 basic types/kinds of differentials: Open, Limited Slip and Locking.......and in that order from least to most traction.
Its time for a locker man!