Disselboom - definition of disselboom by The Free Dictionary
South African the main haulage shaft of a wagon or cart
[from Afrikaans dissel shaft + boom beam]
References in classic literature
Neville was starting I saw Jim standing by my wagon and cutting up tobacco on the disselboom
(yoke) is also transfixed so it's able to slide through and pull the trailer from either side.
Different length disselbooms
on different trailers will make them behave quite differently.