What is a Shade Tree Mechanic? Wikipedia defines it as someone who performs automotive repairs with minimal equipment and supplies in an irregular setting, often a residential garage or driveway. In this episode of the Bumper to Bumper Radio Show, Dave Riccio and Matt Allen discuss what kind of repairs they have seen from these kinds of mechanics and what were the final outcomes. Having a good auto repair shop is key in getting good maintenance done to help your car or truck last a long time!