I can't recall the exact ratio number, but 4.56 was an option on the 3/4 ton trucks. Unless you're pulling loads all the time, I'd go for a 3.73, possibly even the 3.42. Both are available in the 14 bolt full floater, 3.73s are easier to find. $300 in the yards around here.
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Fred
There is no such thing as too much cam...just not enough engine.
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