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Old 12-17-2003, 12:55 AM   #1
Palf70Step
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Question Lug Nut Threads

What year did our trucks on the 1/2 ton go from 7/16" threads to metric. Trying to figure out what my daughter's 82 is before I check on new lug nuts for it?
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Old 12-17-2003, 01:07 AM   #2
old Rusty C10
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i dont know that all of the trucks had metric threads. i just bought the new chrome lug nuts as i took off the standard rims and put on chevy rallye wheels on it. When i went to Pep Boys they had a lug nut catalogue there and if im not mistaken they were standard threads not metric. My 86 is a C10 custom deluxe and is pretty well a base truck. Id offer to mail ya a bunch of lugnuts but it would prolly cost more to mail em than it would for you to go to the store and buy em new
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Old 12-17-2003, 01:40 AM   #3
ElGracho
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My 87 R10 uses so 1/2" RH lugnuts all the way around, so I know you'll be safe with those on your 82.

If it were a 4x4 they would be 7/16" go figure that one. Even though there's one more stud, the wheels and tires on my 84 must weigh at least 20 lbs a piece more than any of my 2wd trucks. I have no idea why they went with smaller lugs on the 4x4.
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Old 12-17-2003, 01:49 AM   #4
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As far as I know, all 2wd trucks were 1/2" x 20 thread.
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Old 12-17-2003, 04:10 PM   #5
Palf70Step
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Thanks guys!
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Old 12-17-2003, 05:54 PM   #6
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Mike's got it. That's what's on my '86...
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