ISO mechanic or someone that could help me out. Willing to pay. My fathers boat is stuck in drive and the issue is somewhere in the lower end. I was trying to surprise him Saturday morning with his boat fixed so he could go fishing not realizing the soonest local shops could look at it is like 3-4 weeks out. I already have the lower unit pulled just don't know what to do next. Any ideas?? It's a 150 Mercury mariner outboard. Any help would be greatly appreciated.