Lower Bearing Adjustment

1975 GMC Magnavan 6.6L Eng VIN M, Automatic TransSECTION Lower Bearing Adjustment

Loosen lock screw. Insert specified feeler gauge (see Adjustment Specifications ) between shift lever and adjusting ring. Rotate ring until slight drag is felt as feeler gauge is withdrawn. Without changing adjusting ring position, tighten lock screw.

Fig 1: Lower Bearing Adjustment (Man. Trans.) (Auto. Trans. Similar)
G09357136Courtesy of GENERAL MOTORS COMPANY
TIGHTENING SPECIFICATIONS

Application  Ft. Lbs. 
Flexible Coupling Bolt & Studs
  "P" Models 20
  All Others 18
Lower Jacket Bearing Clamp 30
Lower Coupling-To-Wormshaft Clamp
  "P" Models 75
  All Others 30
Application  INCH Lbs. 
Column-To-Dash Panel 125
Floor Pan Cover Plate
  "P" Models 24
  "G" Models 30
Firewall Bracket Clamp
  "G" Models 150
  "P" Models 98
  All Others 90
Lower Bearing Adjusting Ring Bolt 70
Ignition Switch Screws 35
Column Lock Plate Cover 20
Turn Signal Housing 45
Lock Bolt Spring Screw (Tilt Wheel) 35
Bearing Housing Support Screw (Tilt Wheel) 60
ADJUSTMENT SPECIFICATIONS

Application Specification
Shift Lever-to-Adjusting Ring Clearance
(Lower Bearing Adjustment)
  Manual Transmission .005"
  Automatic Transmission .033-.036"
Coupling-to-Steering Shaft Flange
  "P" Models 1.26"±.02"
  All Other Models .50"±.02"
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.