For those days 1/4" is well within manufacturing tolerances.  Mine is off a similar amount, but I cannot remember how much.  It has been a number of years.  I still rub the fender sometimes in right turns.  You should have more BS with tires that large.  Most use 4.75.
I had to downsize my front tires a size to get everything to work properly.  Your amount of body drop has a lot to do with clearances and tire rubbing.  People with larger tires generally do not lower the front of their car.  Also,  I have seen many different ride heights over the years.  It has to do with engine size, spring stiffness installed, and that infamous manufacturing tolerances of yesteryear.

My setup:
Wheels - 16x7.  BS - 4.25
Front Tires - 215-55x16  Rear Tires - 225-55x16
1" drop GT springs
Shelby/Arning drop
Distance between bottom of fender and center of spindle - 12"

Last edited by lowercasesteve (2/09/2019 11:35 PM)

Distance from center of spindle to bottom of fender is apx.  12 15/16” on both sides.

And I just remeaured in various places on the frame to the back of the wheels and the rotors and that 1/4” that I measured last night is more like 1/8”.  So, I am now at a total loss.

Could there be that much variation between the factory fender on the driver’s side and the repop on the passenger passenger side?  If anything I would have thought the repop would have fitment issues, but the factory fender is where I’m having the issues.

Last edited by Chaplin (2/10/2019 9:18 AM)

Not sure what to do with this right now. The passenger side fits without issue, even without any fender rolling at all. The driver’s side looks like it will contact the fender arch itself, never mind the unrolled lip.


Here’s the passenger side:




Here’s the driver’s side:



I guess the options are to try and massage the fender (although not sure if there’s enough massaging that can be done), swap out the fender or swap out the wheels for 4.75 bs. Although a 4.75 bs on the passenger side will probably looked sucked into the fender well too far since it looks perfect now.

Ohhhh.  Have you tried measuring actual wheel backspace on those 2 front wheels, or tried mounting them on opposite sides? 

My 65 had a similar issue but I was able to loosen all the fender bolts on that side and bow fender enough to get 3/8" more and still have everything line up ok. No one has ever mentioned to me that it looks different because it doesn't. I then rolled the flanges and went up a size on tires.

TimothyIrolo wrote:

I have a KD-250GKA that does not have front fenders and I would like them. Where can I find them including and mounts? Also need a rear fender...I sorta broke one

Does KD-250GKA refer to a Ford Mustang?  Is that an export designation?  Not trying to be rude, I just never heard of that.  Sorta sounds motorcycleish to me.

BB
 

Chaplin wrote:

TimC wrote:

Ohhhh.  Have you tried measuring actual wheel backspace on those 2 front wheels, or tried mounting them on opposite sides? 

 
Funny you mention that. I did have that thought last night too. I am almost certain that I measured the bs of the wheels when I received them to make sure they were correct before mounting the tires and I am pretty sure they were spot on. I did pull the driver’s side wheel yesterday to check it and the bs was exactly 4.25”, which is what I ordered. I am going to pull the passenger wheel tonight, check it and then mount it on the D/S to see if fitment is any different. I am not expecting that will result in a change on the fitment on the D/S, but I would be very happy if that was the issue!

And while I had each wheel off, and LCA supported, I would put a straightedge with an angle finder vertically on the wheel mount surface of the rotor and try to get a measurement to the frame rail. Compare angles of rotor face from vertical, and distance to frame rail for both sides and ask Shaun at SOT if measurements are significantly different.

And then I would loosen the fender bolts and yank on the fender, as DC suggests, but your paint is a WHOLE LOT nicer than mine LOL.

TimC wrote:

Chaplin wrote:

TimC wrote:

Ohhhh.  Have you tried measuring actual wheel backspace on those 2 front wheels, or tried mounting them on opposite sides? 

 
Funny you mention that. I did have that thought last night too. I am almost certain that I measured the bs of the wheels when I received them to make sure they were correct before mounting the tires and I am pretty sure they were spot on. I did pull the driver’s side wheel yesterday to check it and the bs was exactly 4.25”, which is what I ordered. I am going to pull the passenger wheel tonight, check it and then mount it on the D/S to see if fitment is any different. I am not expecting that will result in a change on the fitment on the D/S, but I would be very happy if that was the issue!

And while I had each wheel off, and LCA supported, I would put a straightedge with an angle finder vertically on the wheel mount surface of the rotor and try to get a measurement to the frame rail. Compare angles of rotor face from vertical, and distance to frame rail for both sides and ask Shaun at SOT if measurements are significantly different.

And then I would loosen the fender bolts and yank on the fender, as DC suggests, but your paint is a WHOLE LOT nicer than mine LOL.

Good idea on the straight edge and angle finder. I will try that tonight too and see what I get for measurements.  I am going to hold off tugging on the fender for the time being. If it comes to that, I think I’ll let the body shop handle that.  I’d be really mad at myself if I screwed up the paint or worse, the fender itself. If they screw it up, they can fix it!