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Longhorn Man · 02-03-2010, 07:45 PM

67 - 70 trucks had 1/2 inch studs.
71 - 80-something had 9/16 inch studs
then it went to metric, probably a 15 mm, but that size is pure speculation.

02-03-2010, 07:45 PM	#8
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: 1991 3/4 ton Chevy wheel, will it fit? 67 - 70 trucks had 1/2 inch studs. 71 - 80-something had 9/16 inch studs then it went to metric, probably a 15 mm, but that size is pure speculation.