Two California men face drug charges in Nebraska after a traffic stop on Interstate 80 led state troopers to over $500,000 worth of methamphetamine hidden in a spare tire.

The patrol says a trooper stopped a westbound car for following too close on Monday near the Utica interchange. A search turned up 12 packages of meth, which weighed over 17 pounds.

The driver, Fausto Jacques Jr., of Chula Vista, Calif., and a passenger, Francisco Frias-Felix, of San Ysidro, Calif., were booked in the Seward County jail on a charge of possession of a controlled substance with intent to deliver.

Their cases on not on the online court system, and it’s unclear if they have an attorney.