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Old 02-28-2013, 09:12 AM   #1
cheez22
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Question about my stock 6-luggers

I'm looking to eventually replace my stock rims on my '70 fleetside. I have the 6-lugs. I want to get maybe a set of 20's. The question I have is, which ones will fit correctly? What backspacing do I need to look for? What is the lug pattern? I need to make sure they will fit correctly before I buy them. Thanks.
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Old 02-28-2013, 10:18 AM   #2
cheez22
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Re: Question about my stock 6-luggers

Also, what offset? Thanks.
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Old 02-28-2013, 11:46 AM   #3
sir_talk_alot
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Re: Question about my stock 6-luggers

6x5.5 just like the new chevys amd gmc trucks. The backspacing is where the problem is. New trucks have like 5.5in backspacing and i think 4in is max for our old trucks. So if you found a cheap deal on a set of 20s for a newer truck you would have to buy 1-1.5in spacers
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'94 GMT 400 ext z71 3" body, 3 in rough country, hd mirrors, 20" motometals on 35s
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Old 02-28-2013, 12:13 PM   #4
msgdsrf
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Re: Question about my stock 6-luggers

Backspace will depand on wheel width. 9", front is good for 4" bs, rear can go +1-1.5 or stagger with wider wheel. 1 inch wider is 1/2" less bs.
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Old 02-28-2013, 12:19 PM   #5
cheez22
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Thumbs up Re: Question about my stock 6-luggers

Thanks, Mike.
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Old 02-28-2013, 12:22 PM   #6
cheez22
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Re: Question about my stock 6-luggers

Quote:
Originally Posted by msgdsrf View Post
Backspace will depand on wheel width. 9", front is good for 4" bs, rear can go +1-1.5 or stagger with wider wheel. 1 inch wider is 1/2" less bs.
This is very confusing, but very useful info here. Thank you!
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