I'm sorry, but this one is driving me nuts and might even cause me to
choke, although I'm not choking yet, and that's doubtless because it's
really not worth getting all choked up over --- but still ---

A tractor loaded by itself would have to have additional choking

....

... another dealer, why would that dealer (or someone else) rip out

the

load's chokings ....

It is "chock", "chocks", "chocked"and "chocking". A chock is a block
or wedge placed under something else, such as a wheel, to keep it from
moving. Also, see, "The plane's wheels were chocked and chained
down". It can also mean as completely as possible such as "a report
that is chock full of errors", or as close as possible as "standing
chock up against the railing." Then there is completely filled,
squeezed together, and jammed as "chock-a-block". But there is
neither a "choke" nor any "choking" in a carload.

Rant over.

Roger Miener
at Tacoma WA