








🔧 Extend your classic ride’s style and function effortlessly!
The MotorbyMotor Universal Window Crank Shaft Extension is a precision-engineered hardware upgrade designed to fit most 1950-1990 GM vehicles and many domestic/import models. Featuring a 16-spline, 1/2-inch diameter shaft, it extends your window crank or door latch shaft by 5/8'' to 11/16'', ensuring a secure fit with a 'C' clip attachment. Lightweight and easy to install, this extension is ideal for restoration enthusiasts and professionals seeking authentic performance and style.







| Manufacturer | MotorbyMotor |
| Brand | MotorbyMotor |
| Model | Window Crank Shaft Extension |
| Item Weight | 3.2 ounces |
| Package Dimensions | 6.77 x 6.34 x 1.26 inches |
| Manufacturer Part Number | GM-SPLINE-01 |
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