In this HD vlog Q&A, Moses Ludel answers a Jeep 4×4 shop owner’s question. Moses discusses the tools and steps needed to properly set up a ring-and-pinion gear set. The primary adjustment is the pinion gear height. See the professional tools and learn about alternatives for setting pinion gear depth or height in the axle housing.
Dana/Spicer axles use pinion gear depth marks to help determine a new gear’s shim stack height. In this Dana 30 axle, the marks provide a base comparison and means for calculating the new shim stack thickness. Charts in a shop manual offer a quick shim height comparison.