Section 20 (Wiper/Washer System - G Series Vans): Overhaul
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 1994 GMC Vandura Special, 1994 GMC Vandura, 1994 GMC Rally Camper Special, 1994 GMC Rally, and 1994 Chevrolet Sportvan. However, it is still accessible from the selected car via links, so may be relevant.
Repairs to wiper assembly are limited to switch, plus external parts, crank arm, spacer and plastic seal, and output shaft seal. Wiper motor is a sealed unit and can only be serviced by replacement.