This 1962-67 Chevy 2 and Nova rear 4-link suspension kit is fully welded, and the one piece subframe connectors really stiffen the body. New tunable rear 4-bars provide great traction. Panhard bar insures full street drivability. Since this is a high horsepower suspension kit, it has fully welded one piece subframe connectors and is a weld-in assembly. Only a weld-in assembly will hold all the horsepower you can put to it