It has been found that pinion bearings â” if not maintained correctly and also when used in extremely dusty conditions â” can in some circumstances have failures.
Please follow this tip and use HUDY Bearing Grease #106220 to increase the lifespan of the bearings considerably. The tip works for both the original 2-bearing & 3-bearing pinion designs.
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With pinion assembly built, slide the driveshaft-side bearing on, and then apply grease to the face where the spacer sits.
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Apply the spacer and then fill the remaining gaps with grease.
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Now fit the 2nd bearing and remove any excess grease that is pushed out.
If you are using the new 3-bearing pinion, apply a small amount of grease on the 3rd bearing face, then fit and remove any excess grease.
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Prior to fitting the pinion assembly to the diff bulkhead, apply grease to the drive shaftside bearing face. When assembled this acts as a seal to the bulkhead.
We recommend that this procedure is performed every 2-3 hours to dramatically increase the bearing lifespan and help to achieve a problem free drivetrain. If you are running in extremely dusty conditions, repeat this procedure more often.
