Cities in San Joaquin and Stanislaus Counties rank in the top 10 in the nation for their stolen car rates.
Police are giving drivers a tool to thwart car thieves.
Police in San Joaquin and Stanislaus Counties are giving free steering wheel locks to drivers to prevent auto theft.
Drivers in either county who own one of the 9 most likely car models to be stolen are eligible.
Those cars include earlier model Hondas, Toyotas and Nissans.
Stockton Police Officer Joe Silva says many stolen cars are recovered but often they are missing a few pieces.
SILVA: "They're getting stripped for their parts whether it's the rims, the stereo system, also any valuables that are left in the car are also getting taken."
Lodi Police Officer Jim Pendergast says many times driver error leads to the theft.
PENDERGAST: "People still leave their engine running and keys in it and they leave their car alone for a few minutes and it warms up and we get those stolen real quick."
Police in San Joaquin County are giving the locks away now, and in Stanislaus, the giveaway begins April 16th.