Yes. Firstly, it depends on what branch you want to join. Next, it depends on how you perform on your ASVAB test. Mechanics require certain minimum scores. Then, decide which kind of mechanic you want to be. I know in my branch, the Marine Corps, that you can be a Motor Transport Mechanic or an Aviation Mechanic. Both are challenging and rewarding in their own way. They both transfer well into civilian careers. Best of luck with your decision and research.