stud bolt size/lug nuts Home › Forums › Discussion Forum › stud bolt size/lug nuts This topic contains 2 replies, has 2 voices, and was last updated by Bruce Hasenauer 8 months, 4 weeks ago. Viewing 3 posts - 1 through 3 (of 3 total) Author Posts May 23, 2017 at 5:20 pm #754 Bruce HasenauerParticipant Hello, looking to update wheels on the Cortez. Anyone know the stud/lug bolt size. I believe its a 8X6.5 pattern, but the studs are larger. Thanks May 24, 2017 at 2:10 pm #756 MooseKeymaster The original studs on a ’67 coach would have been 1/2″, but it’s very possible that someone may have upgraded them to a larger size. It would be best to press one out and take it to a parts house to compare. Moose March 21, 2018 at 5:05 pm #857 Bruce HasenauerParticipant Thank you. Sorry I haven’t checked this site often. Good advice. Bruce Author Posts Viewing 3 posts - 1 through 3 (of 3 total) You must be logged in to reply to this topic.