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Home >> GMC >> 1981 >> Magnavan Automatic Trans, Trans Mfr CD 400/M40 >> Repair and Diagnosis >> Steering >> Steering Column >> Steering Columns >> Adjustments >> SHIFTER TUBE ADJUSTMENT ("G" & "P" Models) >> Automatic Transmissions
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Automatic Transmissions

PI ace shift tube lever in "N" or "D". Loosen adjusting ring clamp screws and rotate adjusting ring to obtain 0.33 - 0.36" end play between shift tube lever and adjusting ring. Tighten adjusting ring clamp screws. See Fig 1.

Fig 1: Shift Tube Adjustment For Automatic Transmission "G" & "P" Models
G09354335Courtesy of GENERAL MOTORS COMPANY
ADJUSTMENT SPECIFICATIONS

Application Specification
Lower Bearing Adjustment
  "G" Models .50"±.04"
  "P" Models 1.26"±.02"
Shift Tube Adjustment
  Automatic Transmission .33-.36"
  Manual Transmission .005"
TIGHTENING SPECIFICATIONS

Application Ft.Lbs.
Flexible Coupling Bolt & Studs
  "P" Models 20
  All Others 18
Lower Jacket Bearing Clamp 30
Lower Coupling-to-Worm Shaft 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