Universal Fit: Works on both 6V and 12V flywheels across air-cooled VW applications.Secure Mounting: Bolts directly on through the upper engine case bolt holes.High Torque Support: Stops the crankshaft from spinning while using a breaker bar.Vehicle CompatibilityVW Beetle (Bug) & Super Beetle: 1950–1979VW Bus (Transporter): 1950–1979VW Karmann Ghia: 1955–1974VW Type 3 (Squareback, Fastback, Notchback): 1961–1973Other Applications: Compatible with select Porsche 356, 912, and VW Vanagon models