just put the kit on, left the rear stock so it sits 1/2" higher in the front currently. Can I got 37s? I would like to have an aftermarket wheel 18-20" I'm scared 35s will look too small with the srw lwb

 

What motor and gears you gots? 35s wont look too small with only a 3.5 lift. My 09 rolls a 7" lift and I think 35s look big on it!

 

A 7" lifted 17 is huge compared to a 7" lifted 6.4. The 35s will look a bit small; not overly small, but you will definitely notice it.

 

 

 

Lol, guys with '17-'18's are rocking 37's with NO lift...

 

 

I only have experience with a 2.5 level and 37s on stock wheels which do rub slightly. Can't speak for other wheels and offsets, dont want to misguide you. Im sure someone will chime in shortly.

 

 

Check out customwheeloffset.com. You can search 17 superduties and various tire sizes in gallery. I am running 35s x 13.5s on 20x10” rims with -24 offset with a 2.5” Carli leveling kit and have zero running. I ran them stock with significant rubbing and needed to do some plastic trimming and bend back a 1/4” metal tab in the wheel well. I see guys running 37s with leveling kits all over and as mentioned above with stock height as well. The stock height 37 guys are running them with stock rims mostly though. Offset definitely makes a big different with rubbing.

 

You can fit 37’s. If you sue the stock wheels there will be slight rub at full lock. If you go aftermarket no rub at all

 

 

All depends on the look you want. Check out the site noted above, there's TONS of examples of 17-18 Super Duties on there with various lifts, level kits and wheel combinations. I'm running 20x10 wheels with a -19 offset, wrapped in 37x13.5x20 Toyo RT's, and 1.8" flares. Tread blocks are covered, only a slight sidewall poke. I have slight rub on the bottom/rear of the flares, I've trimmed as much as I could to make it clear. A 6" lift vs. my 4" would do the trick. Next time I guess. Good luck with your search.