A good friend is restoring a 79 Aspen/Volare/Roadrunner T top car, when he stripped it down there was some pretty cheesy work down to install the T tops originally. It was done by whomever did it at the factory, or maybe it was done by a contractor for Ma Mopar, who knows. He really has no idea, other than he bought it new off the dealer floor. The car has a sag to it because of poor reinforcement which is being cured with torque boxes & sub frame connectors. He has now found out that what he thought was going to be a fairly straight forward restoration is going to be a multi year project now, but he is sticking with it one step at a time. I have owned a 79 Dodge Magnum T top car & there was sever body flex & twist, to the point the core support & the area between the tops stress cracked. Putting T tops in a unibody car is a poor idea without greatly reinforcing the entire car.