Texas Troopers stopped the pair as they were traveling east on US-287 near Clarendon for a traffic violation. A DPS drug dog came to the scene and pointed troopers in the right direction.
Troopers said they found thirteen boxes of vacuum sealed packages of marijuana and one package of THC wax inside the trailer.
All in all, amounting to 160 pounds of weed, and four pounds of THC wax, said DPS Troopers.
The driver was identified as Timothy Robinson, 32, and passenger Sahenette Brooks, 40, both of Bakersfield, Calif.
DPS said the drugs were being brought to Dallas.
Robinson and Brooks were booked into the Donley County Jail.