I'm back...! Asking more questions and wanting referrals/tips/advise - Vintage Mustang Forums

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post #1 of 3 (permalink) Old 04-11-2017, 03:13 PM Thread Starter
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66gt's Avatar
Join Date: Apr 2001
Location: Daly City/ San Francisco
Posts: 356
Question I'm back...! Asking more questions and wanting referrals/tips/advise

It's been a while, I've been absent but ready to get back in the game.

Looking to continue improving my '66 gt

I have place an add for things i'm looking to pick-up for those of you who are constantly upgrading and running out of room in your garages or storage locations:

But first, I need to ask this , probably often asked question (I searched but could not find any previous posts):

What is maximum size wheel I can put on my 66 Mustang without major modifications ?(Wheel spacers and rolling wheel well lips are ok, I suppose)

I need to replace all my tires so I might as well upgrade.

I currently have a set of 14 x5 1967 Cougar XR7 steel wheels (anyone know who may be interested in a set?)
Looking to upgrade to a larger aluminum radiator, any recommendations - mostly street/traffic use, but definitely want to avoid overheating


revolution001 on VFM chat.
-'66 Gt coupe & 05 Ford Explorer Sport
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post #2 of 3 (permalink) Old 04-11-2017, 03:40 PM
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Location: Fort Worth, TX
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You can do things to fudge this (anything is possible with enough time and money, don't ya know), but the safest bet in my personal experience is this:

17x7 - Front with 225 (or narrower, I went 215 just to be safe) 45/17
17x8 - Rear with 255 (again, might be safer to go with 245) 45/17

Edit: if memory serves, that's on a wheel with 4.5in backspace, but probably best to have someone else weigh in and confirm/deny that fuzzy memory.

Your suspension setup may allow for more or be tighter than others. It's an exact science with a dash of voodoo.

I'm not an expert, but I play one on the internet.
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post #3 of 3 (permalink) Old 04-13-2017, 08:27 PM
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Location: S.F., CA
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What BlakeTX said for wheels.

I like my Northern Radiator. https://www.northernfactory.com/AUTO...D/MUSTANG/1966

I drive my car to Reno every August for HAN and have not had any problems in the heat with traffic.


'65 Mustang Inline 200. Oz 250 Head, Holley 350,
Schneider 260/270 cam, Headers, DSII, MSD 6A, and a whole lotta other stuff!
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