BMR 64-72 A-Body w/ 3.25in Axles Rear Solid 1.375in Xtreme Anti-Roll Bar Kit - RedHard launches from high horsepower cars at the drag strip require more than just a normal street style sway bar. BMR's suspensions Xtreme Anti Roll Bar for 1964 1972 GM A Body allows you to launch harder without excessive body roll limiting traction, with little sacrifice to youre a bodys street manners. Manufactured from 1. 375 inch solid bar stock, BMRs Xtreme Anti Roll Bar (XSB007) is designed to eliminate body roll and transfer as much power as