Here is my Diamond C Fmax210SS with Alcoa 17.5 wheels that I added. Latest load and weight slip pictured. Empty weight on the 25' trailer was right at 6k with the stock steel wheels. I originally wanted the wider beamed FMAX208, which would have hauled this 545D, but the price was barely higher to go with the 10K axles vs. 8K. The hutch suspension is a definite upgrade and not available on the FMAX208 as well. Biggest issue I've had is the headlights tend to creep up and blind people when loaded vs. empty. with 3K pin weight and not even on the overloads, I did get flashed once. I tried timbrens but the ride was no bueno. Airbags might not be any better ride-wise. Might have to aim the lights down or lower the front end a couple inches somehow or with F250 coils or something. Part or all of my problem might be that it has the "camper package" with uprated front severe duty springs. Even with most behemoth campers, at best the CG is directly over the rear axle. So extra front spring not needed unless you have a plow or maybe a huge winch bumper.
Also a picture of my old rig(s). I only hauled that 110TLB once on that 18' trailer but it did ok. The wheels were alcoa classic 16" and tires G614 14 ply 110 PSI 3750 lb rating.
I do have a Class A CDL here in CA. However I am researching how "grey area" risky / attn getting with DOT it would be to haul the 545D up to my father's ranch in Washington to redo his pvt. driveway/easement.
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