Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1987HI-CUBE 6.2 J, 400/M40REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 38 (SUSPENSION - FRONT)ADJUSTMENTS & CHECKINGBALL JOINT CHECKINGLOWER BALL JOINT
1987 Chevrolet Hi-Cube 6.2 J, 400/M40
Lower Ball Joint
1987 Chevrolet Hi-Cube 6.2 J, 400/M40SECTION Lower Ball Joint
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 1987 GMC Safari, 1987 GMC S15 Pickup, 1987 GMC S15 Jimmy, 1987 GMC Cab & Chassis, and 1987 Chevrolet S10 Pickup. However, it is still accessible from the selected car via links, so may be relevant.
- A wear indicator is built into the ball joint. Wear is indicated by the position of the 1/2" diameter round boss that the grease fitting is threaded into. A new ball joint has a boss projection of .050" (1.27 mm) beyond cover surface.
- With vehicle weight on wheels, check to see that wear indicator protrudes beyond surface of ball joint cover. If wear indicator is flush or recessed, replace ball joint.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.