Hotchkis Sport Suspension 4015 1971 - 1976 Dodge Plymouth A - Body Sub Frame Connectors (with 111 - inch Wheelbase). The Hotchkis Performance sub - frame connectors for 1971 - 1976 A - Body cars tie together the chassis for added rigidity and improved vehicle performance by reducing flex. Fabricated from 1.5 in. x 2.5 in. rectangular steel these MIG welded connectors are powder coated gloss black. Installation of these connectors does not require modifications or cutting of the floor boards. This easy to install kit is a must for any high - performance classic Mopar. Features Powder Coated Gloss Black Finish MIG Welded Fabricated from 1.5 in. x 2.5 in. rectangular steel. Rigidly connects the front sub frame to rear chassis frame rail which dramatically reduces chassis flex during hard cornering and acceleration. Does not require cutting or modifying the floor. Tucked - in design gives excellent ground clearance. Benefits Rigidly connects the front sub frame to rear chassis frame rail Dramatically reduces chassis flex during hard cornering and acceleration. Improves vehicle handling and traction.