You can buy taller tires. What are you running now? A Task Force '55-'59 3.90 rear differential or the entire axle for that matter will give you easy 65-70 mph w/o taxing the engine. I routinely go over 2000 ft passes in 3rd gear with my 3.90 rear in a '49 1/2 ton. The engine is a '56 235. I've bought 3.90 rears for $125, 20 years ago and as recently as last year.
~ Cosmo
1949 Chevy Half Ton
Rocinante, like Don Quixote, he is awkward, past his prime, and engaged in a task beyond his capacities.
"...my good horse Rocinante, mine eternal and inseparable companion in all my journeys and courses." ...Don Quixote, Cervantes
"If you come to a fork in the road, take it."...Yogi Berra
"Rudeness is the weak man's imitation of strength." ...Eric Hoffer
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