At what pinion angle dose it stopping lubbing the pinion and things start to go wrong?( bergins start to spin in housings ,or wearing out fast.) I have heard that if you move the pinion up too high this can happen .Thanks for all help.
I agree, 15 degrees is the cut off point. FYI, this is only a factor at slow speeds. At highway speeds the ring gear should throw enough oil to lube the pinion. Over filling is an option, but has its limitations also. Once the oil level goes higher than the axle tubes, then leaks also become a possibility. The axle seals are not meant to be bathed in oil, but sometimes do a good job.
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