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08-12-2006, 11:15 AM
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#1 |
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Registered User
Join Date: Mar 2005
Location: Just outside Durham, NC
Posts: 894
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stock tire size
Tried the search function, but it appears to be down, can anyone tell me what the stock tire size on a 70 k20 would have been?
Looking to recalibrate my speedo also, stepping up tire size, and swapping rear gears, any leads to a site that can help would be appreciated.
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1969 SS 350 Camaro Sold 2008 1970 3/4T K20, stock height with 33's, 250 I6, 3 on the tree, and locked front and rear 4.10's  1980 Chevy Malibu 2 dr Sold 2007 1993 Olds. Cutlass Ciera Wagon Traded 2006 2003 Saturn L200 w/5pd. D/D My list spans 5 decades with One common thread.....GM! |
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08-12-2006, 01:52 PM
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#2 |
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Registered User
Join Date: Jun 2004
Location: Beeville, Texas
Posts: 1,943
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Re: stock tire size
7.5-16 bias ply tires on split rims. My truck had 'em and I got the originals from my Suburban too. You could special order other sizes, just a couple I remember seeing: 8.75-16.5, 9.5-16.5, 10-16.5, and 12-16.5. I think the biggest 16.5" rim back then was 8.25" wide. To compare tire sizes this site is a BIG help:
www.1010tire.com
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RJD 1984 Chevrolet C30 welding truck 454/SM465 1977 GMC C15 pickup 350/TH350 1970 Chevrolet C20 pickup 350/TH400 1970 Chevrolet K20 Suburban 454/TH350 1969 GMC 8500 478M V6/5 spd winch truck |
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08-12-2006, 02:03 PM
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#3 |
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Registered User
Join Date: Aug 2006
Location: Georgia
Posts: 850
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Re: stock tire size
I know that Jim Carter Classic Truck Parts will rebuild/recalibrate your speedo. I emailed them about mine a few months ago and they said they would do it for $145 with a $60 core. Their website is www.oldchevytrucks.com.
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