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 MANUALSCHEVROLET1980FORWARD CONTROL 5.7L ENG VIN M, AUTOMATIC TRANS, TRANS MFR CD 400/M40REPAIR AND DIAGNOSIS (SINGLE PAGE)MAINTENANCEPROCEDURESWHEEL ALIGNMENT (PROCEDURES)PRE-ALIGNMENT CHECKS
1980 Chevrolet Forward Control 5.7L Eng VIN M, Automatic Trans, Trans Mfr CD 400/M40
Pre-Alignment Checks
1980 Chevrolet Forward Control 5.7L Eng VIN M, Automatic Trans, Trans Mfr CD 400/M40SECTION Pre-Alignment Checks
NOTE:
Before making wheel alignment adjustments, perform the following checks.
- Wheel bearings must be properly adjusted.
- Steering linkage and suspension must not have excessive looseness. Check for wear in tie rod ends and ball joints.
- Tires should be approximately equal in tread wear and runout must not be excessive. Tires and wheels should be in balance, and inflated to manufacturer's specifications.
- Vehicle must be at curb height with full fuel load, no passenger load, spare tire in place but no extra load in vehicle.
- Vehicle must be on level floor with suspension settled. Bounce front and rear of vehicle several times and allow it to settle to normal running height.
- If steering wheel is not centered with front wheels in straight ahead position, correct by shortening one tie rod adjusting sleeve and lengthening opposite sleeve equal amounts.
- Ensure wheel lug nuts are tightened to manufacturer's specifications.
WHEEL LUG NUTS TIGHTENING SPECIFICATIONS
| Application | Ft. Lbs. | |||
|---|---|---|---|---|
| Chevrolet & GMC | ||||
| C, P & G10 & G20 | 75-100 | |||
| All K Models | 70-90 | |||
| C, P, & G30 | ||||
| W/Single Rear Wheels | 90-120 | |||
| C, P & G30 | ||||
| W/Dual Rear Wheels | 110-140 | |||
| W/Dual Rear Wheels & 5/8" Studs | 130-180 | |||
| Dodge & Plymouth | ||||
| All W & D Models | ||||
| W/Cone Type Nut | ||||
| 1/2"-20 | 105 | |||
| 5/8"-18 | 200 | |||
| W/Flanged Type Nut | 325 | |||
| All B, CB, MB & PB Models | ||||
| W/Cone Type Nut | ||||
| 1/2"-20 | 85-125 | |||
| 5/8"-18 | 175-225 | |||
| W/Flanged Type Nut | 300-325 | |||
| Ford Motor Co. | ||||
| All Models | ||||
| 1/2"-20 | 90 | |||
| 9/16"-18 W/Single Rear Wheels | 145 | |||
| 9/16"-18 W/Dual Rear Wheels | 220 | |||
| International Harvester | ||||
| 1/2"-20 Nuts | 65-90 | |||
| Jeep | ||||
| All Models (Exc. J20 Truck) | 75 | |||
| J20 Truck | 130 | |||
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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.