67' GTO maximum wheel/tire sizes

[Nicks67GTO]

WOW. Lots of GTO wheel threads going on here! Are the GTO's catching on in the PT world? Anyhow mine is a 67' GTO. Everything is stock right now. Does anyone know what the maximum size 17" wheel/backspace/tire i can comfortably run front and rear on this car? I havent gotten under and measure yet because im in Iowa and its freezing out! Anyone know? Also im on a budget so im thinking im going to go with vintage wheel works V-40's are these a good wheel?

[4spdharry]

hit up performance years pontiac forums with this question

[rockytopper]

here is my input on a 65 gto, I have a 65 cutlass same as the gto of those years
https://www.pro-touring.com/forum/sh...ad.php?t=51411

[Nicks67GTO]

Yeah i did that already and i couldnt get much from it. One guy was running a 275/60/15 tire in back and a 235 in front, but thats about all i got.

[ragtop70gto]

I ran across this article when looking for my 70. Doesn't provide as many options for the 64-67 A-Bodies but might give you a general idea. I still think you would want to measure twice, buy once.

http://www.oldsmobility.com/fitting-wheels.htm

[gearbanger]

I run a 17x8 with 5" BS on the front with a 245/45/17 and I have no issues at all. My car sits pretty low, about 5" under the engine crossmember. When I ran it at 4", I would have a rub if i cut the wheels to hard and hit a bump like going in and out of uneven entrances. But that is really low.

In the rear I run a 295/45/18 with a 18x9.5 with a 5.5 BS. I had to do some pretty serious reconstruction of the outer wheelhouse to get that on there though. The inner is stock and the frame is stock. I have about 1/2" of clearance back there. No rubs out back either and they are tucked!

[gearheads78]

I run a 17x8 with 5" BS on the front with a 245/45/17 and I have no issues at all. My car sits pretty low, about 5" under the engine crossmember. When I ran it at 4", I would have a rub if i cut the wheels to hard and hit a bump like going in and out of uneven entrances. But that is really low.

In the rear I run a 295/45/18 with a 18x9.5 with a 5.5 BS. I had to do some pretty serious reconstruction of the outer wheelhouse to get that on there though. The inner is stock and the frame is stock. I have about 1/2" of clearance back there. No rubs out back either and they are tucked!

Have I told you lately how perfect I think your car is.

[gearbanger]

Thanks gearheads78! I really appreciate it.

I finally broke down this fall and took the car completely down. It now sits off the frame awaiting blasting. The frame is now boxed and all the rusty body mounts are fixed. Soon it will be ready for powercoat but I am going to wait till I get all the sheet metal work done on the body before I have it coated. I want to do the sheetmetal work with the body mounted to the frame. I am just anal about that I guess...

Don't mean to hijack!

[RYU]

I run a 17x8 with 5" BS on the front with a 245/45/17 and I have no issues at all. My car sits pretty low, about 5" under the engine crossmember. When I ran it at 4", I would have a rub if i cut the wheels to hard and hit a bump like going in and out of uneven entrances. But that is really low.

In the rear I run a 295/45/18 with a 18x9.5 with a 5.5 BS. I had to do some pretty serious reconstruction of the outer wheelhouse to get that on there though. The inner is stock and the frame is stock. I have about 1/2" of clearance back there. No rubs out back either and they are tucked!

Alex,

I'll be running a similar setup on my 66 Chevelle (which is similar to a GTO in wheel fitment im' guessing). Do you have more pictures of your car? It's awesome!

I'd really like a side view since i've been struggling with tires sizes but I think you've hit a good look!!

[gearheads78]

Alex,

I'll be running a similar setup on my 66 Chevelle (which is similar to a GTO in wheel fitment im' guessing). Do you have more pictures of your car? It's awesome!

I'd really like a side view since i've been struggling with tires sizes but I think you've hit a good look!!

Here is what my combo will look like for my 66 Cutlass. Should be very similar to 66/67 GTO and Chevelle.

18 x 10 with 285-40-18 and 18 x 9 with 255-40-18

[RYU]

Here is what my combo will look like for my 66 Cutlass. Should be very similar to 66/67 GTO and Chevelle.

18 x 10 with 285-40-18 and 18 x 9 with 255-40-18

at first you threw me off and I thought that was a new invisible wheel design! lol

[gearbanger]

I wish I could take credit for the look, but I actually copied from a Chevelle!

[gearbanger]

Here are some more of mine.

[Cutls67]

I am going to have to agree with Richard in saying WOW about your car I hope my sits as low and as good as yours does. Do you have anu spec or any details about it.

Stephan

Here are some more of mine.

[RYU]

I wish I could take credit for the look, but I actually copied from a Chevelle!

https://www.pro-touring.com/forum/at...8&d=1233015333

LOL! I love that picture.

[gearbanger]

I also copied off this guy. He has a way cool chevelle!

[rechin23]

I have a 67 Tempest im running Coys c5 18x7 in front and 20x8.5 with a 275 in the back with 2 inch lowering springs...no issues

[robbie9999]

how does this car look now ? are the wheels running smooth no issues ? did you lower the car ?

[mdean66]

Can I see a pic of your 67 tempest with the 18s and 20s. I have a 66 Gto that I was thinking about running this combo. Thanks

[robbie9999]

Running 19X8 in the front 235/35/19 backspacing 3.75 and 20x10 in the rear, backspacing 5. 275/35/20 - no issues no rubbing