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 MANUALSBUICK1990REGAL CUSTOM, 3.8 L, 4T60/ME9REPAIR AND DIAGNOSIS (SINGLE PAGE)SUSPENSIONFRONT SUSPENSIONSUSPENSION - FRONTREMOVAL & INSTALLATIONLOWER CONTROL ARMINSTALLATION
1990 Buick Regal Custom, 3.8 L, 4T60/ME9
Lower Control Arm: Installation
1990 Buick Regal Custom, 3.8 L, 4T60/ME9SECTION Installation
- Place lower control arm in frame. Control arm-to-frame pivot bolts MUST be installed with bolt heads facing each other. See Figure .
- Tighten ball joint stud nut to 15 ft. lbs. (20 N.m). Tighten ball joint stud nut an additional 90 degrees (1 1/2 flats) or until next slot aligns with cotter pin hole in stud. DO NOT tighten nut more than 60 degrees to align with cotter pin hole. To complete installation, reverse removal procedure.
CAUTION:
NEVER loosen nut during ball joint stud nut tightening procedure.
RENDER: 1.0x
NO RELATED
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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.