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The famous whine from pinion bearings are from the scored bearing races, not ring and pinion teeth.
When replacing the pinion bearings did you use a new crush sleeve between the two bearings? If not, the pre load on the new bearings are all wrong and it may have worn the bearings down again.
Is it only in 5th gear that it whines? And under load (not coasting)?
If it's in 1st gear you hear the whine it might be the intermediate needle bearing and shaft.
Did you replace both the shaft and needle bearing? Is the car an 88 and older? The 89 and up doesn't have the same tendency to wear down the intermediate shaft because of different design.
Anders
posted by 67.122.160...
SWEDECAR
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