[Glenn70]

Back in the day before anyone really knew the factory 4 link could work if set up right, the NMW ladder bars were usually put on these cars as the only drag racing traction device available (besides air bags or the no hop bars). My red 70 was drag raced alot with ladder bars and 2 pieces of the frame were pulled out on each side right where the front brackets bolted up. No doubt due to the conflicting angles as explained, or possibly the bolts just loosened up over time and whala. But with that said, the car did hook with a 4 speed and alot of abuse (and broken parts). The ladder bars were welded to the axle tubes as well to keep things from rotating. My friends 70 chevelle convertible also had the same setup and was launched at 6000 rpms with a stick shift alot of times as a dedicated race car, also took its toll on the chassis. But since were reliving those times as Day 2 cars, ladder bars just have to be on them again! I would think the limited use most of our cars see today, unless we are drag racing with stick shifts, frame damage is unlikely to happen.