33x12.5 on stock suspension?
 

Has anyone run 33x12.5s on a D350 dually with stock suspension? How about with a Far From Stock 2” 2wd leveling kit?

33x12.5 on a stock D-350 suspension, you ask?
I really doubt. You can barely fit those on a 4x4 Cummins with stock suspension. That is unless you cut /modify the wheel wells a lot.

As far as the FFS parts....I would ask them what works with their parts.

On the FFS website they have a leveled d250 with 33x12.5s, if the stock tires are 31s (that may be incorrect, I just know I have 31s on the front right now) then with 2 inches plus less suspension sag from old coil springs I should be able to fit them but I may be incorrect, and I may get some slightly taller springs for the back to make sure I can clear them in the back

Just make sure you have enough clearance between the tires in the rear if you are running duals, I think with 12.50s you will have to use a spacer between the rims and I'm not sure you can get them with the coined style rims we have on these trucks.

My plan was to run fuel cleaver 20x10 or 10.5 wheeles and just order them so the the offset makes up for the space between the wheels and I won’t have to run spacers