🌧️ 1987 GMC K1500: Wiper Blade Sizes
Driver side
18″
Passenger side
18″
Attachment type: hook — most aftermarket blades include the adapter, but check the box.
📝 1987-1991 GMT400 generation updated with 18-inch blades; standard hook attachment
Part numbers on the shelf
Size-standard part numbers — verify the connector before buying.
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