Front Drag tires!????

Depends on the tire. I run 165/80-15 Kumho Powerstar tires on mine and Discount Tire refused to mount them on my 3.75" wide wheels because the manufacturer says 4" is the minimum. I had to go to a mom and pop place to get them mounted and balanced. IMO they would work on a 5" wheel. They are also slightly shorter than 26" (25.5-25.75").

One thing though, and I don't think many think about this, is that I am unaware of a 165/80-15 tire that has a speed rating higher than a "T" (118 mph). I guess it depends on how fast you run. Of course there is also the Mickey Thompson S/R radial, but it's only rated to 130 mph and is over triple the cost of the Kumhos I run.