Captain Obvious here. Typing this all out for me and anyone else who cares.
Keep in mind 67-69 Barracuda fender wheel opening is smaller than other a-bodies, specially the front lower section.
In my experience, on my 67 Barracuda, with KH disc brakes, it is best to get a backspace >3 and <4.5.
Yes, offset is part of it, but using just backspace works for this discussion.
Once you have the wheels, time to determine the best, or max, tire size.
There are tools for this, and to select the proper wheel size first, but let's stick with, we already have the wheels ordered.
Imo, the greater the bs, the taller/wider the tire.
I originally had Cragars on the front: 14x6 3.75 bs, 215/70/14
I bought Steelies: 15x6 3.75 bs.
Bigger wheel, same offset, so I used tiresize.com to calculate what 15" tire would be the same size as the 14" tire, which was: 215/65/15
So, the 14" wheel/tire occupied the same exact space as the new 15" wheel/tire, and based on that I knew the 15" would not rub anywhere.
I've also had these Cragars on the front without issue: 14x6 3.25 bs 205/70/14
Smaller backspace, stuck out farther, 'smaller' tire.
Here are wheels that did not fit on the front, both rubbed the UCA:
Cragar: 14x6 4 & 1/16th bs
Steelies: 15X7 with a 4.5 bs
I have a set of sbp, 14x6 with 3" bs, and I'm trying to determine what tire, if any, would fit up front.
Anyone with a 14x6 3" bs wheel up front on a 67-69 Barracuda?