[1960 shark]

Are there any differences on the 5 lug bolt pattern for pontiac wheels from the 50's to the 70's. Also are all GM wheels with 5 lugs interchangeable?
My friend wants to mount some 15" wheels on a 55 chieftan and he found on craigslist that are off a 77 chevy . Is this doable?
I also want to swap my 1960, 14" wheels to 15" wheels.I was told any 5 lug GM wheel would fit. Is this correct??

[Stuart]

Here's a wheel bolt pattern list for reference: http://www.teufert.net/wheels/bolt-pat.htm Our old Pontiacs have a 5 x 5" pattern, a '77 Chevy may or may not - some have a 5 x 4.75" pattern, heavy duty chassis cars (station wagons, cop cars) have 5 x 5".

[tom s]

pontiac used 4 1/2 ,4 3/4 and 5 in depending on the models and model years.57-64 big car are 5 on 5,GTO and birds are 4 3/4 on 5 and 61-63 tempests are 4 1/2 on 5.Not sure about later or earyler big cars.Tom

[scott cedergren]

Stuart great chart, I am going to keep a copy thanks

[1960 shark]

Well that chart answered all my questions, thanks.

[Tim Younker]

Your 55 Pontiac should already have 15" wheels. Should be 15x5.5. Pontiac went to 14" wheels in 57.

[1960 shark]

If your right, imma kill my friend!

[Steve Barcak]

All full size Pontiacs from at least 1940 through 1976 are 5 on 5. After that, I have both with 4 3/4" and 5 on 5. easy way to tell is the 4 3/4" are the smaller 7/16" studs like the birds 'n GTOs.

Steve
Hosting 11th annual Pontiac Heaven, show, swap, drags, party and all around good time. Saturday April 4, 2009 at Speedworld near Phoenix, Az
Also hosting- 7th annual Nostalgic Show and Go! and swap coming Sunday April 5, 2009 to Speedworld. Phoenix, Az

[Patty58]

Great Chart, helps me a lot , too

Patty 58