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Dynacorn 1967 Ford Mustang Fasback Body Orignal Musatng Front Chassis

Back at the wheelhouse of the original Mustang, it's easy to see the void left by the absent torque box. The torque boxes were used on convertibles but not on the fastback. While this arrangement is fine for a 289 or 302, the extra reinforcement provided by the boxes would be a welcome addition to a car with a 390 or 428.
Dynacorn 1967 Fastback Mustang Body - Revolutionary Replacement

Back at the wheelhouse of the original Mustang, it's easy to see the void left by the absent torque box. The torque boxes were used on convertibles but not on the fastback. While this arrangement is fine for a 289 or 302, the extra reinforcement provided by the boxes would be a welcome addition to a car with a 390 or 428.  View Related Article

 

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