Quote:
Originally Posted by jha2297255
black magic setting = pinion backlash
if i measure the new seal versus old and shim for difference backlash should be unchanged correct?
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If you do it according to the FSM its a bit more complicated than that - they want you to torque the pinion nut until a specified amount of torque is required to turn the differential assembly. They also want the CV joints and halfshafts to be in the horizontal position IIRC.
I've heard of people doing this job by just putting the pinion nut back in EXACTLY the same position as the old one. I have no first hand experience with this matter so YMMV.
The differential on my 91 300D weeps a bit - it might leave a drop every 3rd or 4th day when parked overnight. I agree with prior posters, it would have to get a lot worse before I'd change the seal.