[WhitecatD]

my brother just bought a 64 catalina and we want to put some 15 inch crager wheels on it but we dont know how wide we can go in the back and the front and what the back spacing needs to be. We dont want to modify the car to make them fit.

[ponchopio]

I currently have a set of 15x7 Salt Flat Specials on my 64 Safari with 25560R15s on the rear. They will definitely rub if you don't trim about 1/4" out of the inner wheel lip. The 15x7 with the American Racing standard backspacing of 3.75" is just fine but you can't go with a very wide tire. The sidewall bulge will drag. Hope this is a little helpful.

John
www.fullsizepontiacs.com

[TININDN]

Originally Posted by WhitecatD

my brother just bought a 64 catalina and we want to put some 15 inch crager wheels on it but we dont know how wide we can go in the back and the front and what the back spacing needs to be. We dont want to modify the car to make them fit.

Here's the combo I have used on both a '63 and '64 Cat.

Front - 15 X 7 Wheel with 225/70R15 or 235/70R15 with 4.5" backset

Rear - 15 X 8 Wheel with 255/70R15 with 5" backset

This results in the maximum size wheel and tire combo you can get in the wheel openings - I run a 30 X 9 Goodyear Radial slick on my 2+2 drag car, but wouldn't go any taller than 29" (255/70R15) on the rear for the street.

The problem you are going to run into is finding custom wheels with the backset you need. Torque Thrust II's can be ordered in any backset and Wheel Vintiques will make a custom chrome GM ralley in any backset. Beyond that, there's not much out there for us 5 X 5 bolt pattern guys.

One word of warning - check the dimensions of your particular car before you buy, because there is quite a bit of slop in the body mounts (body can be shifted to one side or the other or fore and aft), and your springs better be good.

[WhitecatD]

Originally Posted by TININDN

Front - 15 X 7 Wheel with 225/70R15 or 235/70R15 with 4.5" backset

Rear - 15 X 8 Wheel with 255/70R15 with 5" backset

Heres a stupid question.
When you say backset you mean backspace right?

[TININDN]

Originally Posted by WhitecatD

Heres a stupid question.
When you say backset you mean backspace right?

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