GM Corvette 1963-1982 Repair Guide

Wiper Transmission

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REMOVAL & INSTALLATION 1963-67 Vehicles



See Figure 1

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Fig. Fig. 1: Exploded view of the windshield wiper transmission and related components-1968-82 vehicles

  1. Remove the wiper block and arm assembly from the transmission.
  2.  
  3. Remove the glove box door and compartment assembly.
  4.  
  5. Remove the three transmission-to-cowl retaining screws.
  6.  
  7. Remove the wiper transmission retaining clip and remove the transmission from the crank arm.
  8.  
  9. Remove the transmission through the glove box opening.
  10.  
  11. To install, reverse the above procedure.
  12.  

1968-72 Vehicles

  1. Make sure the wiper is in the park position.
  2.  
  3. Disconnect the battery ground cable.
  4.  
  5. Remove the rubber plug from the front of the wiper door actuator, insert a suitable prytool and push the internal piston rearward to actuate the wiper door open.
  6.  
  7. Remove the wiper arm and blade assemblies from the transmission.
  8.  
  9. Remove the plenum chamber air intake grille, or screen, if so equipped.
  10.  
  11. Loosen the nuts retaining the drive rod ball stud to the crank arm and detach the drive rod from the crank arm.
  12.  
  13. Remove the transmission retaining screws or nuts, then lower the drive rod assemblies into the plenum chamber.
  14.  
  15. Remove the transmission and linkage from the plenum chamber through the cowl opening.
  16.  
  17. To install reverse the above procedure. Make sure the wiper assemblies are installed in the park position.
  18.  

1973-82 Vehicles

  1. Make sure the wiper is in the park position.
  2.  
  3. Disconnect the battery ground cable.
  4.  
  5. Open the hood and remove the plenum chamber screen.
  6.  
  7. Loosen the nuts retaining the ball sockets to the crank arm and detach the drive rod from the crank arm.
  8.  
  9. Remove the transmission nuts, then lift the rod assemblies from the plenum chamber.
  10.  
  11. Remove the transmission linkage from the plenum chamber.
  12.  
  13. To install reverse the removal procedure. Make sure the wipers are in the park position.
  14.  

 
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