1970 GTO wheel/Tire fitment - Pontiac GTO Forum
User Tag List

LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 02-23-2019, 03:02 PM Thread Starter
Join Date: Feb 2019
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
1970 GTO wheel/Tire fitment

new to forum,, i have a 1970 GTO worked 400, eibach lowering springs,, just purchased Year One staggered 17"-- 8/9 wheel set.
YO recommends 245/45/17 fronts and 275/40/17 rear.
was thinking 235/50/17 fronts and 275/50/17 rears. ( want a little more rubber underneath) either Nitto 555 or Firehawk Indy 500
Will this combo work?? don't want rubbing issues later on.

Click image for larger version

Name:	dad's pictures Oct 2016 001.JPG
Views:	75
Size:	72.8 KB
ID:	117835
GTOBlue is offline  
Sponsored Links
post #2 of 2 (permalink) Old 02-23-2019, 10:46 PM
05GTO's Avatar
Join Date: Oct 2004
Location: Deliverance, GA
Posts: 5,139
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
Here are the specs on all 4 tire sizes,

245/45/17 = 9.65" sectional width, 4.35" sidewall height and a total tire height of 25.68"

235/50/17 = 9.25" sectional width, 4.62" sidewall height and a total tire height of 26.25"

275/40/17 = 10.82" sectional width, 4.33" sidewall height and a total tire height of 25.66"

275/50/17 = 10.82" sectional width, 5.41" sidewall height and a total tire height of 27.82"

I think your tire sizes would look better, I would be concerned that the 235/50/17 may rub on the front fenders, maybe a 235/45/17 would be a better fit, 235/45/17 specs are 9.25" sectional width, 4.15" sidewall height and a total tire height of 25.32"


05GTO is online now  
Sponsored Links

  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO Wheels & Tires

Quick Reply

Register Now

In order to be able to post messages on the Pontiac GTO Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Similar Threads
Thread Thread Starter Forum Replies Last Post
Front wheel and tire fitment and trunk pan question Alaska GTO 1964-1974 Tempest, Lemans & GTO Wheels & Tires 2 04-22-2014 06:02 PM
gto/lemans tire fitment Pontiachris 1964-1974 Tempest, Lemans & GTO General Discussion 3 02-18-2011 10:25 PM
18x8 wheel / tire fitment question 06black60 Wheels and tires 10 09-27-2008 09:07 PM
Wheel/Tire fitment questions..... CUZ-I-CAN Service, Maintenance and Technical Discussion 15 05-17-2005 12:55 AM
Wheel and Tire Package Fitment Question Judged 2004-2006 GTO General Discussion 1 05-06-2005 12:34 PM

Posting Rules  
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome