ring and pinion pattern check

my5thmopar said

You need to grease several teeth and check. I mean carryover by some grease will get on the clean teeth if you’re applying enough pressure. The pattern looks centered but, I don’t know why you’re not getting good contact. Try putting pressure against the outside edge of the ring gear.

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Thanks for the clarification. The pinion had no marking compound (all teeth clean), and I only checked the pattern in this area. To get carryover, I think I would have had to continue rotating the gears until the pinion teeth that ran through the compound contacted the ring gear again. Or, I would have had to mark more ring gear teeth. I did apply pressure while checking the pattern.

Unfortunately, the axle is all reassembled and in the vehicle. I actually did the rebuild in January, and just got the vehicle back on the road following the completion of my other upgrades (springs, shocks, 73-76 UCA/LCA/disc brakes, wheels/tires, etc.). I was asking about the pattern because I am getting some gear whine around 40-45 mph, but only in a very light load/float condition. During normal drive and coast, it is not noticeable, although I haven't yet tested above 50 mph.