Okla. Stat. tit. 47, § 47-14-103B: Automobile transporters - Extension of load - Height

A. Any automobile transporter vehicle or combination of

automobile transporter vehicles operated under the provisions of

Section 14-103 of this title may carry an extension of load, the

extension not to exceed three (3) feet beyond the front nor more

than four (4) feet beyond the rear of the vehicle or combination of

vehicles thereof.

B. Any stinger-steered automobile transporter operated under

the provisions of Section 14-103 of this title may have an overall

length up to eighty (80) feet with an extension of load, with the

extension not to exceed four (4) feet beyond the front nor more than

six (6) feet beyond the rear of the vehicle or combination of

vehicles.

C. No automobile transporter vehicle, unladen or with load,

shall exceed a height of fourteen and one-half (14 1/2) feet.

D. An automobile transporter shall not be prohibited from the

transport of cargo or general freight on a backhaul, provided it

complies with weight limitations for a truck tractor and semitrailer

combination. As used in this section, "backhaul" means the return

trip of a vehicle transporting cargo or general freight, including

when carrying goods back over all or part of the same route.