Dont know alot about Az. but up in SEA we call our shop JIFFY LUBE..they are real good at lubing 5th wheels on gears but to do a PM, plan on loosing your tractor for 5 days minimum. The Portland shop turns them out in 24 hours. I know OD definently needs good mechanics. Like everyone else, mechanics are getting to be a valuable asset just like the drivers. Too many kids just want to use computers and not do the jobs that keeps this nation moving. Best of luck with your job search