Chevrolet Nova/ChevyII 1962-1979

Adjustments

Print

LINKAGE



3-Speed Column Shift


Click image to see an enlarged view

Fig. Fig. 1 3-speed column shift linkage adjustment-1962-67 vehicles



Click image to see an enlarged view

Fig. Fig. 2 Column shift linkage adjustment-1968-75 vehicles



Click image to see an enlarged view

Fig. Fig. 3 Column shift linkage adjustment procedure-1978-79 vehicles

1962-67 VEHICLES
  1. Position both transmission levers in Neutral.
  2.  
  3. Position the column selector in neutral. Align the first/reverse and second/third shifter tube levers on the steering jacket.
  4.  
  5. Install the control rods on the steering jacket levers and secure them with lock clips.
  6.  
  7. Install a swivel on the first/reverse shifter control rod, and adjust until the swivel can freely enter the transmission shift lever hole (rear). Install a retaining clip on the swivel, insert the swivel in the lever hole, and secure it with a nut.
  8.  
  9. Install the second/third lower rod to the frame-mounted idler lever and in the second/third lower rod to the frame-mounted idler lever and in the second/third transmission lever and secure with retaining clips.
  10.  
  11. Install the upper second/third shifter control rod, in the same manner as the first/reverse shifter control rod (Step 4), to the frame idler and the mast jacket shifter lever.
  12.  


WARNING
Ensure that the shifter tube levers stay in alignment.

  1. Check the adjustment by moving the shift lever through all the gear positions.
  2.  

1968 VEHICLES

Post-1967 column shift cars are equipped with a steering jacket alignment bracket to ease linkage adjustment. An adjustment tool may be fabricated from a 3 / 16 in. rod as shown in the accompanying illustration.

  1. Loosen the swivel locking clamps on both shift rods. The shift rods should freely pass through the swivels.
  2.  
  3. Position the shift lever on the column in Neutral. Insert the adjustment tool through the first/reverse lever, the relay lever, and the second/third lever and then into the alignment plate on the steering jacket.
  4.  
  5. Position the shift levers on the transmission into Neutral.
  6.  
  7. Tighten both the swivel locking clamp nuts on the rods while holding the swivel with one hand.
  8.  
  9. Remove the adjustment tool. Shift the transmission through the gears, and then place it into Neutral. Insert the tool through the alignment holes and the bracket.
  10.  
  11. If the tool doesn't freely pass through the holes and bracket, loosen the clamps and readjust the linkage.
  12.  

1969 VEHICLES
  1. Position the ignition switch to the OFF position.
  2.  
  3. Loosen the swivel locknuts on both shift rods. The shift rods should pass freely through the swivels.
  4.  
  5. Move both the column shift lever and the transmission first/reverse lever into reverse detent position, and then tighten the swivel locknut.
  6.  
  7. Move the column and transmission levers into Neutral. Insert the adjustment tool into the lever alignment holes and the alignment plate.
  8.  
  9. While holding the second/third control rod and swivel, tighten the swivel locknut.
  10.  
  11. Remove the adjusting tool. Shift the column lever into Reverse, turn the ignition switch to LOCK position, and check the interlock control. If the interlock binds, leave the switch in lock and readjust the first/reverse rod at the swivel.
  12.  
  13. Check the shifting pattern of the transmission and then place it in Neutral. Insert the adjusting tool through the levers and the bracket. If it does not go through easily, loosen the swivel locknut and readjust the linkage.
  14.  

1970-77 VEHICLES
  1. Shift the column lever into Reverse, and turn the ignition into the LOCK position.
  2.  
  3. Slacken the shift control rod swivel locknuts. Pull the first/reverse control rod (attached to the column lever) down slightly and then tighten the transmission lever, clevis locknut.
  4.  
  5. Unlock the ignition switch and place the shift lever in Neutral. Place the lower column levers in neutral position, align the lever gauge holes and insert the adjustment tool. (Holes are on the lower side of the levers.)
  6.  
  7. Hold the rod and swivel and tighten the second/third shift control rod locknut.
  8.  
  9. Withdraw the adjustment tool from the levers and check the shift operation. Shift the column lever into reverse and check the interlock operation.
  10.  
  11. When the shift lever is in reverse, the ignition switch should move freely to the LOCK position. The ignition switch must not be able to be turned to LOCK in any other gear except Reverse.
  12.  

1978-79 VEHICLES

See the accompanying illustration for the adjustment procedure.

3-Speed Floor Shift
1968-79 VEHICLES


Click image to see an enlarged view

Fig. Fig. 4 3-speed floor shift linkage adjustment-1968-75 vehicles

  1. Loosen the locknuts on both shift rod swivels. The shift rods should pass freely through the swivels.
  2.  
  3. Move the floor shift to Neutral and install the locating gauge into the shifter bracket assembly.
  4.  

The locating gauge is a piece of 1 / 8 in. thick flat stock 41 / 64 in. wide and 3 in. long.

  1. Position the levers on the transmission in Neutral. Turn the first/reverse shift rod nut down against the swivel, and then tighten the locknut against the swivel.
  2.  
  3. Turn the second/third rod nut down against the swivel, and then tighten the locknut against the swivel.
  4.  

On 1969 and later cars, skip Step 5 and perform Steps 6-8. Step 5 is the final step for 1968 cars.

  1. Remove the locating gauge, and shift into reverse. Turn the ignition switch to the LOCK position.
  2.  
  3. Loosen the swivel locknut on the backdrive control rod. Pull down slightly on the control rod to take up any slack in the column mechanism, and then tighten the clevis jam nut.
  4.  
  5. The ignition switch should move easily in and out of LOCK. If there is any binding present keep the switch in lock and readjust the backdrive control rod.
  6.  
  7. Check the shift pattern for correct operation.
  8.  

4-Speed Floor Shift


Click image to see an enlarged view

Fig. Fig. 5 4-speed floor shift linkage adjustment-1964-79 vehicles

1964-68 VEHICLES
  1. Remove the control rods from the transmission levers, and position the levers in neutral.
  2.  
  3. Move the floor shift lever into neutral and insert a locating gauge into the bracket assembly. (Use a 5 / 16 in. rod on 1964 cars; 1965 and later four-speeds use the same gauge as the three-speed floor shift.)
  4.  
  5. Adjust the length of the control rods, then secure the swivels with the jam nuts and install the clevis pins.
  6.  
  7. Remove the locating gauge and check the shift pattern.
  8.  

Post-1964 Muncie transmission levers have two control rod holes. Attaching the control rods in the lower holes will result in reduced shift lever travel and allow faster shifting, with increased shifting effort as a drawback.

1969-79 VEHICLES
  1. Turn the ignition switch to the OFF position, except on 1970 models which should be turned to lock.
  2.  
  3. Loosen the swivel locknuts on the shift rods and backdrive control rod. Position the transmission side cover levers to their neutral detent positions.
  4.  
  5. Place the floor shift in neutral and insert a locating gauge (same gauge as three-speed floor shift) into the lever bracket assembly.
  6.  
  7. Adjust all control rod swivels for easy entry into their respective levers.
  8.  
  9. Tighten the shift rod locknuts and remove the gauge.
  10.  
  11. Shift the lever into reverse and pull down slightly on the backdrive rod to remove the slack. Tighten the locknut.
  12.  
  13. The ignition switch should now be able to be moved easily into LOCK, and it must not be possible to turn the key to lock, when in any other position other than reverse. Readjust the backdrive rod, if necessary.
  14.  
  15. Check the shift pattern for correctness.
  16.  

 
label.common.footer.alt.autozoneLogo