18" wheels

69wacuda said
I was thinking of these in 18x8.5 with +35 offset (6.1")on my 69 Barracuda FB with either 255/40R18, or 265/40R18 if I can get away with a 26.3 diameter. The wheels also come in a +24 OS as well, with the possibility of getting a custom OS. I will wait till I get my disc setup installed before I order. My main concern will be the front, b/c I will be adjusting a b body rear to the proper size. What do you guys think?

It will depend on the brakes. Most increase the track width. If you run standard 73+ disks, the +35 offset wheels with a 265/40/18 would have ~.1" less clearance than the 275/35/18's I run on my Duster. While that might not sound significant, I have exactly zero extra clearance to the frame at full steering lock. So it would be close, you'd probably need a thin spacer if the brakes don't add track width compared to the 73+ disks.

The +24's would have ~.1" more clearance to the fender than I do, but I don't think that would work at all with 26.3" tall tires. I had to extend the fender to bumper brace on my car almost 2" to get the front lower corner of the fender to clear the wheels when turning, and my tires are only 25.6" tall. I think 26" is pretty close to that limit with tires that wide, unless you run a higher than stock ride height.

I would plan on the 255's and use the +35mm offset. Pretty much all the aftermarket brake kits add track width even compared to the 73+ Mopar disks. And even if you used those with the 255's you might not need a spacer. If you did it would only be a couple mm's, so no big deal.