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Want to know largest rear wheel/tires that will fit inside '65 Falcon fenderwell

posted in: bruno's rare '65 hi-po falcon garage, news on April 23, 2009 at 03:13 PM

my Falcon at Letchworth State Park, New York state!

my Falcon at Letchworth State Park, New York state!

Hello. I am trying to find out what the largest size wheel tire configuration that will still tuck under my 1965 Falcon rear wheel wells. My car currently has 14” x 6” wheels. I’d like to go up in size to 15” wheels, and want to know if I can fit a 60 series tire up under the wheel wells. I really don’t want to have to use offset and have the tires stick outside of the wells. Does anyone know what size tires and wheels will work for me? I think I can fit a 15×7 wheel according to the backspacing I have seen. Curious if anyone know the largest tire size that will work for what I want?
Looks like maybe: 225/60R15 or 235/60R15 should work. Does anyone know for sure, or know of a site that could tell me about maximum fitment of tire/wheel combinations? Thanks in advance for your help. I am thinking of keeping the old school look of the 60’s period by putting Cragar SS wheels on my Falcon, and running 15” wheels on the back and keeping the 14” wheels on the front. Open to comments also. Thanks, Bernie Can’t get enough of this Hub Garage – its my latest addiction!



Deranged Motorsports Garage
April 23, 2009 at 03:51 PM

Your’re not going to get much tire under there…...I’ve got a 64 and it had the quarters cut gasser style when I got it and still couldn’t get but maybe 8 inche s of rubber under it…...that’s what sytarted it down the road its on today..lol…....Jim

justa64falconsprint Garage
May 03, 2009 at 05:12 PM

Bruno i have a better answer for you on the tire size on my falcon. in the rear i have weld prostar 15×8 4.5rs 4.5bs. i have just over i would say 1.5” room before the tire would hit the inside of the tub and leaf springs. the tires are mickey thompson sportsman-i g60-15. the tires are 26” with a tread of about 9”. i had to do a little to the outer part of the tub. now i have no problems. in my case i got the car with them so i would look for a rim to get closer to the leaf springs. i also have the 4” up front. if i had the $$$ i would go with smaller in back bigger in front radials for a much better ride. it has the right look with the setup it has so it will stay for now. hope this helps. not sure what you have for a rear but it could change all the measurements.

hippie's Garage
June 27, 2009 at 11:21 PM

Dream it and they will fit,(did you find out any thing on featured cars????)

Fordy Acres Car Farm Garage
June 28, 2009 at 11:24 AM

Hey bernie, I’ve got a 64’ Ranchero that had 235/60/14s and they rubbed on the leafs on the inside and the quarters on the outside. So unless you’re ready to breakout the sawzall and welder, stick to the 225/65/15s. The 65 series will give you a little more sidewall than the 60s. I’ve changed the Ranchero a little to fit 295/50 15s. These are almost 13’’ (sidewall to sidewall) by 26.25’’ tall. All modern tires are sized in millimeters wide by percent of width = sidewall by rim diameter, so you’re going to need a 225mm by 65% by 15. These are the worst cars to try and put more rubber under without surgery – well Chevy IIs were no better I suppose. Good luck and put the ol’ measuring tape to good use!

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