Powerglide Column Shift
- The shift tube and lever assembly must be free in the mast jacket.
- Lift the selector lever toward the steering wheel and allow the selector lever to be positioned in Drive by the transmission detent.
- Release the selector lever. The lever should be prevented from engaging low, unless the lever is lifted.
- Lift the selector lever toward the steering wheel and allow the lever to be positioned in Neutral by the transmission detent.
- Release the selector lever. The selector lever should now be kept from engaging Reverse unless the lever is lifted. If the linkage is adjusted correctly, the selector lever should be prevented from moving beyond both the neutral detent and the Drive detent unless the lever is lifted to pass over the mechanical stop in the steering column.
If adjustment is necessary, perform the following steps:
- Adjust the linkage by loosening the adjustment clamp at the cross-shaft. Place the transmission lever in Drive by rotating the lever counterclockwise to the Low detent, and then clockwise one detent to Drive.
- Place the selector lever in Drive and remove any free-play by holding the cross-shaft up and pulling the shift rod downward.
- Tighten the clamp and check the adjustment.
On 1969-73 cars, carry out the following additional steps:
- Place the shift lever in Park and the ignition switch in LOCK. Loosen the back-drive rod clamp nut. Remove any lash in the column and tighten the clamp nut.
- When the selector lever is in Park, the ignition key should move freely into LOCK. The LOCK position should be obtainable only when the transmission is in Park.
- Loosen the adjustment nuts at the swivel. Place the transmission control actuating lever in the Drive position by moving it counterclockwise to the Low detent, and then clockwise one detent position to Drive.
- Place the floorshift lever in Drive. Hold the floorshift unit lower operating lever forward against the shift lever detent.
- Place a 3 / 32 in. (0.09) spacer between the rear nut and the swivel. Tighten the rear nut against the spacer.
- Remove the spacer and tighten the front nut against the swivel, locking the swivel between the nuts.
Linkages used on Turbo Hydra-Matic transmissions are similar to those used on Powerglides. Adjustments are the same, except that the transmission lever is adjusted to Drive by moving the lever clockwise to the Low detent, and then counterclockwise two detent positions to Drive.Column Shift
EXCEPT TURBO HYDRA-MATIC 200
- Loosen the swivel at the lower end of the rod that comes from the column.
- On 1973 and later models, set the transmission lever in the Neutral detent by turning the lever counterclockwise to the L1 detent, then clockwise three positions. On models through 1972, set the lever in the Drive detent by turning the lever counterclockwise to the L1 detent, then clockwise two positions.
- Put the column lever in Neutral for 1973 and later models, and in Drive for models through 1972. The important thing here is not where the indicator points but that the lever be in the correct position.
- Tighten the swivel. Readjust neutral start switch as necessary.
- Check that the key cannot be removed and that the wheel is not locked with the key in RUN. Check that the key can be removed in LOCK with the lever in Park, and that the steering wheel is locked.
- Remove the screw and washer from the swivel assembly on the rod which activates the transmission shift lever.
- Put the transmission shift lever in neutral by turning it counter-clockwise to L1 detent and then clockwise three detent positions. Put the transmission selector lever in neutral as determined by the mechanical stop in the steering column assembly-do not use indicator pointer.
- Turn the swivel until it lines up directly with the hole in the shift lever, and install screw and washer. You should not have to force the transmission lever to move in either direction to install the screw.
- Adjust the transmission indicator pointer and neutral start switch.
- Check that key cannot be removed from the RUN position if the transmission selector is in Reverse and that key can be removed with the selector in Park. Make sure lever will not move from Park position with key out of ignition.
- Loosen the swivel at the lower end of the rod that comes from the steering column.
- Loosen the pin at the transmission end of the cable.
- Set the floorshift lever in the Drive detent.
- Set the transmission lever in the Drive detent by moving it counterclockwise to the L1 detent, then clockwise three detent positions.
- Tighten the nut on the pin at the transmission end of the cable.
- Put the floorshift lever in Park and the ignition switch in LOCK.
- Pull down lightly on the rod from the column and tighten its clamp nut.
THROTTLE VALVE LINKAGE
1964-66 V8, 1964-73 4 AND 6-CYLINDER ENGINES
- Depress the accelerator pedal.
- The bell crank on 6-cylinder engines and the carburetor lever on V8 engines must be at the wide open throttle position.
- The dash lever at the firewall must be 1 / 64 - 1 / 16 in. off its lever stop.
- The transmission lever must be against the transmission internal stop.
- Adjust the linkage to simultaneously obtain the conditions in Steps 1-4.
- Remove the air cleaner.
- Disconnect the accelerator linkage at the carburetor.
- Disconnect both return springs.
- Pull the throttle valve upper rod forward until the transmission is through the detent.
- Open the carburetor to the wide open throttle position. Adjust the swivel on the end of the upper throttle valve rod so that the carburetor reaches wide open throttle position at the same time that the ball stud contacts the end of the slot in the upper throttle valve rod. A tolerance of 1 / 32 in. is allowable.
Turbo Hydra-Matic 250 and 350 Transmissions
These transmissions utilize a downshift cable between the carburetor and the transmission.
- Pry up on each side of the detent cable snap-lock with a suitable prytool to release the lock. On cars equipped with a retaining screw, loosen the detent cable screw.
- Squeeze the locking tabs and disconnect the snap-lock assembly from the throttle bracket.
- Place the carburetor lever in the wide open throttle position. Make sure that the lever is against the wide open stop. On cars with Quadrajet carburetors, disengage the secondary lock-out before placing the lever in the wide open position.
The detent cable must be pulled through the detent position.
- With the carburetor lever in the wide open position, push the snap-lock on the cable or else tighten the retaining screw.
Do not lubricate the detent cable.
Turbo Hydra-Matic 400 transmissions are equipped with an electrical detent, or down-shift switch operated by the throttle linkage.Turbo Hydra-Matic 400 Transmission
- Place the carburetor lever in the wide open position.
- Position the automatic choke so that it is off.
- Fully depress the switch plunger.
- Adjust the switch mounting to obtain a distance of 0.05 in. between the switch plunger and the throttle lever paddle.
- Pull the detent switch driver rearward until the hole in the switch body aligns with the hole in the driver. Insert a 0.092 in. diameter pin through the aligned holes to hold the driver in position.
- Loosen the mounting bolt.
- Install the detent switch.
- Press the switch plunger as far forward as possible. This will preset the switch for adjustment, which will occur on the first application of wide open throttle.