Fits Various 1958-2004 GM Vehicles and 1980-1995 Jeep CJ/YJ/Wagoneer. Hooker continues to set the standard of performance with the BlackHeart line of drivetrain components. These BlackHeart transmission mounts are constructed of durable polyurethane to handle the stress and vibration of high horsepower applications while still lasting longer than rubber mounts. Our 3-hole design allows multiple mounting options for factory chassis or custom hot rod applications and feature a unique built-in safety lock to keep from separating under high torque loads. Fits 1 or 2 bolt GM and Jeep applications.. Please check design of your current mount to see if this application will work.