The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 08-12-2006, 11:15 AM   #1
shelby987
Registered User
 
shelby987's Avatar
 
Join Date: Mar 2005
Location: Just outside Durham, NC
Posts: 894
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.
__________________
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!
shelby987 is offline   Reply With Quote
Old 08-12-2006, 01:52 PM   #2
Robert1970C20rstbukt
Registered User
 
Robert1970C20rstbukt's Avatar
 
Join Date: Jun 2004
Location: Beeville, Texas
Posts: 1,943
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
__________________
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
Robert1970C20rstbukt is offline   Reply With Quote
Old 08-12-2006, 02:03 PM   #3
Chevyman680063
Registered User
 
Chevyman680063's Avatar
 
Join Date: Aug 2006
Location: Georgia
Posts: 850
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.
Chevyman680063 is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 10:11 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com