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Automatic Transmissions

Place shift tube lever in "N" or "D". Loosen adjusting ring clamp screws and rotate adjusting ring to obtain 0.33 - 0.36" (8.4-9.1 mm) 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
G09318909Courtesy of GENERAL MOTORS COMPANY
ADJUSTMENT SPECIFICATIONS

Application Specification
Lower Bearing Adjustment
  "G" Models .46-.54" (12-13 mm)
  "P" Models 1.24-1.28" (31.5-32.5 mm)
Shift Tube Adjustment
  Automatic Transmission 33-.36" (8.4-9.1 mm)
  Manual Transmission .005" (.13 mm)
TIGHTENING SPECIFICATIONS

Application  Ft. Lbs. (N.m) 
Flexible Coupling Bolt & Studs
  "P" Models 20 (27)
  All Others 18 (24)
Lower Jacket Bearing Clamp 30 (41)
Lower Coupling-to-Worm Shaft Clamp
  "P Models 75 (102)
  All Others 30 (41)
Application  INCH Lbs. (N.m) 
Column-to-Dash Panel 125 (14.2)
Floor Pan Cover Plate
  "P" Models 24 (2.7)
  "G" Models 30 (3.4)
Firewall Bracket Clamp
  "G" Models 150 (17.0)
  "P" Models 98 (11.1)
  All Others 90 (10.2)
Lower Bearing Adjusting Ring Bolt 70 (7.9)
Ignition Switch Screws 35 (4.0)
Column Lock Plate Cover 20 (2.3)
Turn Signal Housing 45 (5.1)
Lock Bolt Spring Screw (Tilt Wheel) 35 (4.0)
Bearing Hsg. Support Screw (Tilt Wheel) 60 (6.8)