do i have to worry about torque boxes if i will have harder rear arm bushings? factory horsepower.

 

Running slicks at the track and high RPM launches can really hurt them. Your not going to tear them out on the first run but eventually they will get destroyed and are a boat load to get replaced when the stockers are torn.

 

Yeah, more so with urethane or solid bushings because they transfer the load to the chassis more abruptly. The soft factory rubber bushings are no longer absorbing the shock.

 

it's an inexpensive fix so maybe i'll order the torque box kit when i buy the arms with my december commission check