yes, im sorry they did mean track width.
\here are the specifications for the trailer.
Must not weigh in excess of 4,000 lbs.
Must have a maximum outside-to-outside tire width of 79.25"
Note: outside tire width over 75" must use late-model U-Haul Auto Transport (identifiable by silver galvanized color).
Must have a maximum wheelbase (distance from front axle to rear axle, usually posted on the driver's side door jamb) of 133 inches.
Low-hanging equipment on the vehicle being towed such as spoilers, air dams, ground effects, etc., may be damaged by contact with the Auto Transport during loading and unloading. Make sure there is enough clearance for these items.
thanks again
Tom Bartlett