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Home >> GMC >> 1993 >> Jimmy Typhoon >> Repair and Diagnosis >> Suspension >> Front Suspension >> Suspension - Front (4WD & AWD Torsion Bar) >> Inspection >> Ball Joint Checking >> Lower Ball Joint (Astro, Bravada, & Safari)

Lower Ball Joint (Astro, Bravada, & Safari)

  1. Wear indicator is built into ball joint. Wear is indicated by position of the 1/2" diameter round boss that grease fitting is threaded into. A NEW ball joint has a boss projection of .050" (1.27 mm) beyond cover surface.
  2. With vehicle weight on wheels, ensure wear indicator protrudes beyond surface of ball joint cover. Replace ball joint if wear indicator is recessed or even with housing.
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