74 Dart Sport New Toy!
The wheels are Enkei RPF1's. In the front they're 18x9's with a 35mm offset, but I run Dr. Diff's 13" cobra style rotor kit and 5mm spacers. Tires are 275/35/18's. In the back they're 18x10's with a 38mm offset, but I have a 68-70 B-body 8 3/4. Tires are 295/35/18's, but I also run a 1/2" spring offset and cut another 1/2" off of the quarter lip.
Yeah I would definitely reinforce the K member while its out. The one in my Duster actually had broken the weld on the steering/engine mount, to the point that when the steering wheel was turned the entire mount would pull away from the K. Talk about some slop in the wheel!
I reinforced mine like Firm Feel does theirs. I fully welded all the seams, went over all of the factory welds, boxed and gusseted the steering box mount, and added reinforcements to the LCA mounts.