5 axle power unit w/ 2 drop axles T660

It appears as if you already have a step-deck, so that would seem to make sense to me. You will not be able to take as heavy of loads as a typical road tractor due to the excess weight of the drop axles, but there are many loads that do not come close to grossing out.
You say they are farm trucks, so make sure that you acquire the proper authority, insurance, etc. to haul non-exempt commodities for hire.

 

I have one lift axle on mine, 2008 ProStar, 600hp ISX up front, 18spd, wet kit, and it is heavy with the set back axle. A set back axle rated at 12,000 lbs. They could have at least spec'd a 14,000 pound axle up there. And I do use mine, but rarely, as most of the time I'm well under 15,000 lbs in the dry van. It is a steerable unit which is nice, and is rated at 8,000 pounds. But, when I do get those 50,000+ lb loads from Ford Axle trust me it comes in handy. Thank God it is only a 10 mile trip.

But two, a bit overkill unless you really need them. Even in the oil patch in ND one lift axle was plenty for what we do. And that was the reason for my truck purchase, it was going to go to work hauling Propane and Butane in the patch. That dried up, and now running auto parts in Detroit and surrounding area. But, that axle is a good conversation starter, I tell everyone I'm new and those are my training wheels.

 

What are you running that requires two lift axles? I really do not see the purpose unless you are specializing in something odd.

 

If your just looking to run part time in the off season find a carrier local to you that would let you lease on and dispatch you hauling commodities or flatbed freight
If you like it just get your own authority and find yourself some freight that fits your niche

 

What motor? Paccar MX13? Cummins ISX? Paccar motors from 2012-2013 have been a disaster for us. I own 10 and am looking forward to getting rid of them ASAP.

 

2010-2012 motors killed lots of carriers.