Protect your 1964-1972 GM A-Body, while complying with NHRA safety rules with a Driveshaft Safety Loop from BMR Suspension. If you drag race your Fourth Gen, chances are you need a driveshaft safety loop to be NHRA legal. Built from 1/4-inch laser-cut CNC-formed plate steel, BMRs DSL007 Driveshaft Safety Loop welds-on to the factory floor support located behind the transmission. This design gives you a solidly mounted loop that will stay in place should a driveshaft or transmission failure occur.BMR Suspension designed the Driveshaft Safety Loop to contain a driveshaft, keeping it from ripping through the floor or digging into the track in event of a failure. It simply attaches to the factory driveshaft tunnel brace with supplied Grade 8 hardware. BMR designed the DSL007 for street, drag race, and top speed applications. A Driveshaft Safety Loop is cheap insurance to protect your investment and provide peace-of-mind whether you are at the track or on the street. When performance is a must, rely on BMR Suspension!BMR Suspensions DSL007 weld-on Driveshaft Safety Loop is available in black hammertone and red powdercoat for long-lasting good looks. Installation time is about 2 hour. Proudly made in the U.S.A.!