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 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 05-16-2013, 11:49 PM   #1
Skunksmash
Registered User
 
Skunksmash's Avatar
 
Join Date: Sep 2012
Location: TX
Posts: 1,014
Actual, factory tire size on my 87?

I can't seem to get a straight answer through all my searching. Did anyone buy one of these trucks new back in the day and see the actual, factory tire size? One guy will swear its one size, then someone else will come along and say its something else. Anyone know the truth?
Skunksmash is offline   Reply With Quote
Old 05-17-2013, 12:42 AM   #2
83GMCK2500
Registered User
 
Join Date: Sep 2009
Location: Beaverton, OR from WA State
Posts: 1,515
Re: Actual, factory tire size on my 87?

On my SPID, for my '83 K2500 it is LT215/85R-16E.
__________________
Devin

1983 GMC High Sierra 2500, 4x4, RC/LB, 400 S.B., SM-465, NP-208, Corporate 10 bolt & 9.5" 14 bolt
1996 GMC Sierra SLE 3500 DRW, 4x4, EC/LB, Vortec 454, NV-4500, BW-4401, AAM 925 & AAM 1050
1997 GMC Sierra SLT 1500 4x4, Z71/F44, EC/SB, Vortec 350

My Introduction with my '83s History
New Daily, the '96
83GMCK2500 is offline   Reply With Quote
Old 05-17-2013, 12:49 AM   #3
J Knight
Registered User
 
J Knight's Avatar
 
Join Date: Jun 2011
Location: Baytown TX
Posts: 2,219
Re: Actual, factory tire size on my 87?

I worked in a tire shop in the late 80's and if the truck had 15x8in rallys on it, it had 235/75/15's on it. Not sure about the 15x6 steel wheels with hub caps but I want to say 205/75/15's on those.
__________________
John
82 Chevy Silverado 350ci/TH350
J Knight is offline   Reply With Quote
Old 05-17-2013, 02:39 AM   #4
INSIDIOUS '86
Registered User
 
INSIDIOUS '86's Avatar
 
Join Date: Jul 2009
Location: washington
Posts: 4,178
Re: Actual, factory tire size on my 87?

I believe it's going to depend on what options your truck has and what tires were ordered
Posted via Mobile Device
__________________
377 sbc thumpr cam autogear m23 muncie 3:73 Detroit trutrac
3''spintech prostreet mufflers xpipe 1 3/4 headers
build thread !http://67-72chevytrucks.com/vboard/s...d.php?t=577217
Iroc gauge threadhttp://67-72chevytrucks.com/vboard/s...d.php?t=554511
INSIDIOUS '86 is offline   Reply With Quote
Old 05-17-2013, 03:53 AM   #5
Skunksmash
Registered User
 
Skunksmash's Avatar
 
Join Date: Sep 2012
Location: TX
Posts: 1,014
Re: Actual, factory tire size on my 87?

Silverado, with the standard rally wheels. The ones with the center cap and the gold chevy logo in the middle, that so many of these trucks though out the 80's had. I do know that a lot of the people who run the stock tire size complain that they look too small for the trucks.
Skunksmash is offline   Reply With Quote
Old 05-17-2013, 07:35 AM   #6
Keith Seymore
Registered User
 
Keith Seymore's Avatar
 
Join Date: May 2009
Location: Motor City
Posts: 9,226
Re: Actual, factory tire size on my 87?

Quote:
Originally Posted by Skunksmash View Post
I can't seem to get a straight answer through all my searching. Did anyone buy one of these trucks new back in the day and see the actual, factory tire size? One guy will swear its one size, then someone else will come along and say its something else. Anyone know the truth?
Yes - to all of the above.

I ordered my truck new and followed it down the assembly line; plus - I built about 3.5 million square bodies back in the day.

If you flip through here it will show you all the tire/wheel combinations that were available for 1987:

http://www.gmheritagecenter.com/docs...olet-Truck.pdf

I orderd mine with the P235/75R15s, which is what is on it now.

Also - if you tell us what the tire RPO codes is (..are...) on your SPID we can tell you what tires your truck came with.

Lastly - if you want to spend $50 you can send your VIN to the GM Heritage Center archives and they can give you the actual invoice for your specific truck, which would include the tires ordered originally as well as all other RPO content (and prices).

http://www.gmmediaarchive.com/?page=3

So - the factory information is out there. It shouldn't take much to get to the bottom of this great mystery.

K




__________________
Chevrolet Flint Assembly
1979-1986
GM Full Size Truck Engineering
1986 - 2019
Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926
My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524
Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/

Last edited by Keith Seymore; 05-17-2013 at 07:43 AM.
Keith Seymore is offline   Reply With Quote
Old 05-17-2013, 08:28 PM   #7
57rookie
Registered User
 
Join Date: Jul 2011
Location: Calgary, Alberta
Posts: 153
Re: Actual, factory tire size on my 87?

It will be 235/75/15.
57rookie is offline   Reply With Quote
Old 05-18-2013, 09:42 PM   #8
100%Chevy
Registered User
 
Join Date: Jun 2008
Location: Moss Point,Ms.
Posts: 1,439
Re: Actual, factory tire size on my 87?

I bought my 82,4x4,C-10 new(and still have it)
It came with 235's on it.
My 85 Gmc has 225's on it.
And,235's on my 77,C-10.
How close to accurate your speedo is will tell if your tires are the right size.That is if your truck is original.
Mike.
100%Chevy is offline   Reply With Quote
Old 05-18-2013, 10:13 PM   #9
izzy_Britton
Registered User
 
izzy_Britton's Avatar
 
Join Date: Apr 2013
Location: Nor-Cal
Posts: 632
Re: Actual, factory tire size on my 87?

I just bought my 38th square about 6 weeks ago and #37 two months before that. #38 is an 86 2wd c10 which had the original tires on it when i bought it.

237/75 - 15 on both of these as well as MANY of the previous trucks. even with the factory tire size on my truck, the speedo is still off 5MPH.

-Izzy
__________________
WHO_DCTC - Wifes 05 Z-71 Build - Now defunct as she decided she wants an Escalade too
Cream Puff - LS'd Square - Slow going on the back burner
Tripple Threat - 3 Wrecks for the price of one build thread
Project Delongdium - Step-Sons Plastic Clad 2003 Avalanche - DONE and Delivered.
izzy_Britton is offline   Reply With Quote
Reply

Bookmarks


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 09:02 PM.


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