Yep, I was thinking of the 1954 and earlier frames before the V8 was a factory option that would need the front-outlet exhaust manifold. Good catch on the TF trucks having a different frame shape!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!