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Originally Posted by dre99gsx
When you decelerate (or coast), the pinion and ring will move away or toward each other. In my case, the pinion was slowly developing more in-out slop. You can test this by doing a force test on the pinion, rotating the pinion flange with an inch-lb wrench, and measuring the breaking force.
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But this would be bearing slop right?
Slop between inner and outer bearing on the pinion shaft should be 0 absolutely and should even be under pretension. (that you also measure with an inch-lb wrench but not the click type but the bend type, as you try to measure drag). But this measurement should be done with only the pinion installed in the housing, not with core and crownwheel installed.
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Mine eventually had none, to the point where I just snapped a tooth off the pinion gear during recent HPDE event.
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Lol been there done that:
(I had some issues with my quaife atb that was previously unknow at quaife's but funny enough the quaife core survived all this!
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but this is a 188k diff though, not the type 215.
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You may need to remove the diff and just get it serviced with new compression sleeve for the pinion.
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A new compression sleeve is only necessary if new pinion shaft bearings are fitted or if it has been overtightened.
Quote:
Originally Posted by MBan
I’ll get it back in to the workshop in a couple of months and see what they can find.
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Be sure that if you have a 'shop' opening up your diff and have it disassembled, that that shop is more a transmission/drivetrain specialist than a 'shop'
Adjusting a diff and and taking the measurements how they should be taken is very much a specialist's job and is usually a bridge too far for a normal mechanic.
Also have them take a look at your propshaft (centerbearing, weld on balance weights, giubo and cv joint (diffside)).
Take into account that you have the 'softest akg subframe bushings' but at shore 95a they are just as hard as most other polybush suppliers.
So as far as aftermarket subframe bushings go, these are stiff (so noise).
Doesnt mean that you now probably have a 2nd problem.