GM Cutlass RWD 1970-1987 Repair Guide

Linkage

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ADJUSTMENT



See Figures 1, 2 and 3

3-Speed Column Shift
1970-77 MODELS
  1. Place the transmission in Reverse.
  2.  
  3. Raise the vehicle and support it safely with jackstands.
  4.  
  5. Loosen the swivel bolts on the shift rods at the transmission. Make sure the shift rods are free to move in the swivels.
  6.  
  7. Push up on the reverse shift rod until the detent in the column is felt and tighten the swivel bolt for the first/reversed rod.
  8.  
  9. Place the transmission in neutral and insert a 1 / 4 in. rod through the 2-3 shift lever and into the alignment hole. Tighten the swivel bolt at the transmission.
  10.  
  11. Lower the car. Check the shifter operation. Place the shifter in reverse, and the ignition switch in the lock position. Make sure the ignition key can be removed and that the steering wheel will not turn.
  12.  



Click image to see an enlarged view

Fig. Fig. 1: Column shift linkage

1978 MODELS
  1. Turn the ignition switch to OFF.
  2.  
  3. Raise and support the vehicle using jackstands.
  4.  
  5. Remove the retainer from the shift rods.
  6.  
  7. Place the transmission levers in Neutral.
  8.  
  9. Align the control levers and place a 1 / 4 in. gauge pin into the levers and brackets, with the shift handle in Neutral.
  10.  
  11. Loosen the nuts on the shift rods and adjust the trunnion and pin assembly on First/Reverse, then tighten the nuts and install the shift rod and retainer.
  12.  
  13. Loosen the shift rod nut and adjust the trunnion and pin assembly on Second/Third, then tighten the nuts and install the shift rod and retainer.
  14.  
  15. Remove the gauge pin from the control lever assembly and check the operation of the control lever. Readjust as required.
  16.  
  17. Lower the vehicle.
  18.  

3-Speed Floor Shift
  1. Place the transmission in Reverse, and the ignition switch in the LOCK position.
  2.  
  3. Raise the vehicle and support it safely with jackstands.
  4.  

Do not place the shifter in reverse from below.

  1. Loosen the swivel bolt on the back drive rod at the equalizer. Make sure the rod moves freely in the swivel.
  2.  
  3. Pull down lightly on the back drive rod until a stop is felt. Tighten the swivel bolt.
  4.  
  5. Place the shifter in Neutral, and loosen the jam nuts at the shifter assembly.
  6.  
  7. Insert a 1 / 4 in. pin through the shift lever brackets and levers.
  8.  
  9. Adjust the swivels to obtain a "Free Pin" fit at the levers. A free pin fit means that there is a slight drag on the pin after you have made your adjustments.
  10.  
  11. Tighten the jam nuts.
  12.  
  13. Lower the vehicle and check the shifter operation.
  14.  



Click image to see an enlarged view

Fig. Fig. 2: Three-speed foorshift linkage

4-Speed Floor Shift
1970-77 MODELS

The 4-speed shift linkage is adjusted in exactly the same manner as the 3-speed floor shift described earlier.

1978-80 MODELS
  1. Turn the ignition switch to the OFF position.
  2.  
  3. Raise and support the vehicle with jackstands.
  4.  
  5. Loosen the locknuts at the swivels on the shift rods.
  6.  
  7. Set the transmission levers in Neutral.
  8.  
  9. Place the shifter in Neutral.
  10.  
  11. Align the control levers and place a 1 / 4 in. gauge pin into the levers and brackets.
  12.  
  13. Tighten the First/Second shift rod nut against the swivel. Torque to 10 ft. lbs. (13 Nm)
  14.  
  15. Tighten the Third/Fourth shift rod nut against the swivel. Torque to 10 ft. lbs. (13 Nm)
  16.  
  17. Tighten the reverse shift control rod nut to 10 ft. lbs. (13 Nm)
  18.  
  19. Remove the gauge pin, check for proper operation of the levers and lower the vehicle.
  20.  



Click image to see an enlarged view

Fig. Fig. 3: Four-speed floorshift linkage

5-Speed Floor Shift

The 5-speed transmission linkage is internal and cannot be adjusted.

 
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