Okla. Stat. tit. 47, § 47-14-103A: Motor vehicle and manufactured home combinations -

Overall length and width - Limitations on movement.

A. No combination of a motor vehicle and manufactured home or

frame or frames thereof shall have an overall length, inclusive of

front and rear bumpers, in excess of seventy (70) feet or a width in

excess of eighteen (18) feet while operating on the system of

interstate and defense highways. In determining the width of a

manufactured home, the overall width shall not exceed the eighteen-

foot width limit. Such combination exceeding seventy (70) feet in

length or eight and one-half (8 1/2) feet in width must comply with

the provisions of Section 14-118 of this title. A front and rear

escort shall be required on the interstate and defense highways for

vehicles meeting the parameters of this subsection.

B. If any combination of a motor vehicle and manufactured home

or frame thereof exceeds seventy (70) feet in overall length or

eight and one-half (8 1/2) feet in width, they shall be moved only

during daylight hours on the system of interstate and defense

highways. The towing vehicle must be at least three-fourths-ton

rated capacity with dual wheels.