"The" Crossmember for your 6R80, 10R80 or MT-82 Upgrade! 1948 - 1979 2wd F-1 / F-100 / F-150 Trucks This Stifflers crossmember is a great addition to your classic Ford Truck upgrade when installing...

A direct replacement for the flimsy, stamped steel OEM unit, this crossmember is a great addition to your F-150 truck! Transmission Crossmember 1999-2004 Lightning / Harley Davidson This Stifflers...

"The" Crossmember for Your '80-'97 2wd F-150/F-250 Transmission Upgrade (For AOD, AODE, E4OD, 4R70W, C4, C6, T-5, T-45, T-56, TKO's, 3550, 3560, TH350, TH400, Powerglide & More!) (*Does NOT...

"The" Crossmember for Your '80-'97 2wd F-150/F-250 Transmission Upgrade (For 6R80, 10R80 and MT-82 transmissions) This Stifflers tubular crossmember kit is a great addition to your OBS Ford Truck...

Easy Bolt-In Kit for your 6R80, 10R80 or MT82 Swap (79-04 Mustang)! Stifflers kit comes with all you need to install a 6R80, 10R80 or MT82 transmission in any 79-04 Mustang / Cobra! At the core...

Putting a T-45, T-45 Cobra Spec, T-56 (includes Magnum & XL), TR-3650 or TH-400 in your Fox? We have the Crossmember for you! A direct fit for upgrading your Fox to a T-45, T-45 Cobra Spec,...

Works with AOD, AODE, 4R70W, C6, G101A, GF5R, T-5, TKO*, TKX*, TR-3550, and 4L60E** transmissions. Stifflers single tube design adds stiffness and strength far beyond that of the OEM versions...

79-04 Mustang Custom Transmission Install Kit Stifflers kit comes with all you need to custom install a transmission that is not currently covered by one of Stifflers existing crossmembers for your...

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...

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 Viper Spec Transmission Mount We offer this transmission mount designed to work with Stifflers crossmembers to install a Viper Spec T56. Please Note: This mount is ONLY intended for TRUE...