Since you don't mention the year of the truck or whether the hubs are original, we don't have enough information. Original equipment wheel studs were 7/16-20. and would be torqued to 55-60 ft/lbs. A 12/-20 stud which is common on later model vehicles would get 90-100 ft/lbs. These are general rule of thumb specifications. Special circumstances like alloy wheels and different lengths of thread engagement on specialty lug nuts also should be considered.
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!
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