Chevrolet Nova/ChevyII 1962-1979

Transmission

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REMOVAL & INSTALLATION



3-Speed and 4-Speed Transmissions

Removal of a three-speed transmission with overdrive is similar to that for a standard transmission, but additionally requires disconnecting the overdrive control cable and electrical connections.

  1. On 1977-79 cars, remove the shift lever knob and, if equipped with a four speed, the spring and T-handle. Raise the car high enough for working clearance.
  2.  
  3. Disconnect the speedometer cable and TCS switch connector, if so equipped.
  4.  
  5. Remove the driveshaft as outlined in this section.
  6.  
  7. Support the engine with a jack and remove the crossmember-to-frame bolts.
  8.  
  9. If the car is equipped with a floor shift, remove the crossmember-to-shifter support attaching bolts and the shifter brace-to-crossmember attaching bolts.
  10.  
  11. Remove the transmission mount-to-crossmember bolts.
  12.  
  13. Raise the engine/transmission enough to allow the crossmember to be removed.
  14.  
  15. Remove the linkage from the side cover on column shift cars. It is not necessary to remove the linkage on cars built before 1977 and equipped with floor shifts. Remove the shift lever from the linkage for removal clearance. On 1977-79 cars, remove lever and linkage.
  16.  

The shift lever is attached to the linkage by two bolts on earlier models and a pin and spring clip on later models.

  1. On floor shift cars, remove the stabilizer shaft-to-lever assembly retaining nut, and push the bolt to the side until the stabilizer rod can be disconnected. Also, on floor shift cars built in 1977 and later years, remove the bolts attaching the shaft control assembly to the support on the transmission and pull the unit down until the lever clears the boot and remove it.
  2.  
  3. Remove the top two transmission-to-bellhousing bolts and install guide pins in these holes. Remove the bottom two bolts.
  4.  

Use of guide pins will prevent clutch plate damage or displacement during transmission removal. They may be fabricated from two 1 / 2 in. X 13 bolts by removing the heads and filing off half the threads.

  1. Carefully pull the transmission to the rear, and then down and out of the car.
  2.  

To install:

  1. To install the transmission, bring it into position with the bellhousing and carefully guide it into the housing.
  2.  

Keep in mind that the input shaft will be going through the throwout bearing, clutch plate, and finally into the crankshaft pilot bearing. The shaft may have to be turned in order for its splines to engage the grooves in the clutch hub.

  1. Install the four transmission-to-bell housing bolts and lockwashers and torque them to 55 ft. lbs. on cars built through 1976. On 1977-79 cars, torque 3-speed and 4-speed 76mm bolts to 75 ft. lbs.; 4-speed 83mm bolts to 52 ft. lbs.
  2.  
  3. On 1977-79 cars, slide the shift lever into the rubber boot and position the shift control to the support. Install the bolts retaining the control to the support and torque. Install the shift levers on the transmission of column shift and 1977-79 models. Connect the stabilizer rod to the lever assembly and shift lever on floor shift models.
  4.  
  5. Raise the engine until the crossmember can be reinstalled. Torque the crossmember-to-frame bolts to 25 ft lbs. Remove the engine jack.
  6.  
  7. Install the crossmember-lever support attaching bolts and lever assembly brace-to-crossmember attaching bolts.
  8.  
  9. Install the transmission crossmember-to-mount bolts and torque to 40 ft. lbs.
  10.  
  11. Install the driveshaft as outlined later in this section.
  12.  
  13. Connect the speedometer cable and TCS switch wire, if so equipped.
  14.  
  15. Fill the transmission with SAE 90 gear lubricant and check the operation of the transmission.
  16.  

 
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