I ran a 59 Suburban for several years as my daily driver. It had a 307 V8, a SM 420, and a Dana type 60 3.73 rear axle from a GMC 3/4 ton pickup. It had no problem keeping up with traffic on the interstate, and pulling any trailer I chose to back up to! It got about 12MPG, regardless of operating conditions, loaded or empty!
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!