Ron67 wrote:

Just finishing up a Granada front disc installation on my 67 Conv. and now for wheels.  It is stock except for the Shelby/Arning drop.  I would like to use Torque Thrust D 15 x 7, 3.75 bs or preferably 16 x 7, 4.0 bs.  It appears that a 16 x 7 with a 205/55R16 tire will fit.  Any help or suggestions before I order will be greatly appreciated.

3.75 bs might not be enough for your 67.  4.0" bs will work.  I have 16x7's on my '66 and the 4.25 bs is perfect.  Your car is wider, so a little less bs should work just fine.
 

The good thing about a 17” is the sidewall does not bulge out so much like a 15” does.  One big consideration is a possible future conversion to large disc brakes that might require a larger wheel.

Pro:  17” is actually easier to fit than 15” wheel.
          Better tire choices available than 15” or 16”.

Con:  Ride quality will be diminished due to shorter sidewall.
          Smaller 11” brake rotors tend to look a bit weird inside a 17” wheel.


In my opinion, 16” wheels tend to have the best proportional look on early Mustangs.

TKOPerformance wrote:

Ultimately I went with 17s for two reasons.  One, tire size selection and cost is considerably better and cheaper than other sizes, without the rubber band look of an 18.  The tires on my car cost $450 a set mounted and balanced.  That was really hard to argue with.

Second, like MS says, future brake upgrades.  Eventually I'll go to 13" fronts and 11.65" rears ('94-'04 Cobra brakes).  I like those brakes and it allows me to run the same brakes on both my '67 and my '89.  In the end those cars will have a lot in common with one another, making spare parts easier to keep around, etc. 

The ride is stiffer than the 15s I had on the car, but if you do wheels and tires BEFORE changing springs and shocks you can eliminate a fair amount of that.  I don't mind the stiff ride.  Its not harsh, just firm.  I've driven the car for over and hour at a stretch and I wasn't aching to get out of it at the end.  That said, ride comfort is a highly individualized thing. 

I think proportionally MS is right, a 16 looks a little better than a 17, but practical considerations won out for me.  At least it isn't one of those Chip Foose cars where he thinks everything needs to be on 20s.  The guys got mad talent, and I respect his skills a lot, but the proportions he uses on musclecars with the wheels and tires just don't look right to me. 

I agree with everything you guys are saying.  But add all those made-for-TV car fab shows to the oversized wheel discussion.  Dave Kindig has the same outlook.
And, you're right about the brakes.  I went with 16's and had to settle for 12.19 disc rotors.  they do work better than the old K-H's, though.