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Home >> Chevrolet >> 1990 >> Step Van 7.4 N, Standard >> Repair and Diagnosis (Single Page) >> Drivelines & Axles >> Differentials & Drive Axles >> Differential - EATON Positive Traction >> Adjustments >> 2-Piece Case >> Right Side Gear Clearance

Right Side Gear Clearance

  1. Install right side gear (cam unit) and side gear thrust washer in differential case's right half. Using washers, long bolt and nut, clamp right side gear unit in differential case.
  2. Install pinion gears and thrust washers on pinion yoke. Install pinion yoke in differential case half. Loosen nut on the bolt. Position one pinion gear tooth facing downward (perpendicular to ring gear flange) and tighten nut.
  3. Install dial indicator on ring gear flange, with indicator stem positioned on one tooth of pinion gear. Pull pinion gear against differential case half. Rotate pinion gear back and forth and note backlash reading.
  4. Ensure pinion yoke remains seated while checking backlash. Repeat procedure on the remaining pinion gears. Backlash should be .010-.018" (.25-.46 mm).
  5. Change thrust washer thickness to obtain correct backlash. If backlash is greater than specification, use thicker thrust washer. If it is less than specification, use thinner thrust washer.
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