Crossmember Accessories

Easy Bolt-In  Kit for your 6R80, 10R80 or MT82 Swap! (’65 - '70 Mustang)Stifflers kit comes with all you need to install a 6R80, 10R80 or MT82 transmission in any 65-70 Mustang!  At the core of the...

'65 - '70 Mustang Custom Transmission Install Kit* (*Does NOT include transmission mount. The ’65-‘70 OEM rubber transmission mount will not work with this crossmember kit) Custom install a modern...

Polyurethane Mount for Ford Transmissions A true performance application component for cars, trucks, hot rods. For racing / competition, yet popularly used for street vehicles when more horsepower...

Polyurethane Transmission Mount for GM Transmissions (Energy Suspension P/N: 3.1108) Improve Shift Quality Unique Safety Interlock Design Impervious To Vehicle Oils And Chemicals Strong Enough...

Stifflers Adjustable 6R80 Transmission Mounting Bracket Stifflers adjustable 6R80 Transmission mounting bracket is a perfect starting point for creating your own custom transmission crossmember for...

Solid Bushing Option for Stifflers 1979-1998 Crossmembers For those who desire to have a solid mounted crossmember we offer this optional Solid Bushing Kit. These high strength nylon bushings are...

Adapter for installation of TH-350, TH-400 or PowerGlide using Stifflers crossmembers. Use this Stifflers adapter with polyurethane transmission mount (300-ES31108) to install a GM transmission to...

Stifflers' Driveshaft Safety Loop Engineered to exceed NHRA regulations. Doesn't get much simpler than this, bolts directly to transmission mount. Quick and easy bolt-in application requires no...

Stifflers' Driveshaft Safety Loop Engineered to exceed NHRA regulations. This one of a kind driveshaft safety loop will save you and your investment from the destructive effects of a broken...

Stifflers' Driveshaft Safety Loop Engineered to exceed NHRA regulations. This one of a kind driveshaft safety loop will save you and your investment from the destructive effects of a broken...