The mileage is not reset on a engine swing, The engine swings are scheduled for around 925,000, on the older tractors the the odometers only read to 999,999 then start over.
Lack of money means little new equipment and deferred major maintenance tasks, some of what should have been engine swings at 925,000 became P&D tractors instead with out the engine swing.
Trailers that should have been refurbed or replaced are let go, the tail lights fall out in the field and the roll of trailer tape comes out(getting harder and harder to find that tape must cost too much).
A lot of the blame for the condition of the L/H equipment comes down to the accounting system now used, previously at R the cost of L/H repairs were charged to L/H overhead, now they charged to the terminal that does the repairs and the emphasis is to push it down the road doing as little as possible so of course they all turn into big pieces of **** .
It used to be that we heard why didn't you fix xxx while you were working on it, now we hear why are you fixing that there's nothing on the write up about it.......................