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 MANUALSGMC1966I1000 STANDARD TRANS, TRANS MFR CD 435GAREPAIR AND DIAGNOSIS (SINGLE PAGE)STEERINGPOWER STEERINGMANUAL STEERING GEARS - (SAGINAW) RECIRCULATING BALLADJUSTMENTSTEERING GEAR HIGH POINT CENTERING

1966 GMC I1000 Standard Trans, Trans Mfr CD 435GA

Steering Gear High Point Centering

1966 GMC I1000 Standard Trans, Trans Mfr CD 435GASECTION Steering Gear High Point Centering

Set front wheels in straight ahead position, check mark on worm shaft designating steering gear high point. Mark on shaft may either be on top side (12 o'clock position) or on bottom side (6 o'clock position) of shaft, and lined up with coupling lower clamp.
With independent suspension, if gear has been moved off high point when setting wheels in straight ahead position, proceed as follows: Loosen right and left tie rod adjusting sleeves, and turn both sleeves an equal number of turns in same direction to bring gear back on high point.
NOTE: Turning sleeves in different directions or unequal number of turns will disturb toe-in setting.
On "I"-beam axle models, if gear has been moved off high point when setting wheels in straight ahead position, loosen connecting rod sleeve clamps and turn sleeve to bring gear back on high point. Readjust toe-in if necessary. See Wheel Alignment Specifications & Procedures in WHEEL ALIGNMENT Section.

Fig 1: Steering Gear Sector Shaft Cross Section (Exc. "G" Models)

Courtesy of GENERAL MOTORS COMPANY

RENDER: 1.0x

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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.