I have 2 problems from 1 incident. I have an 83 3.8 OMC stern drive. I was cruising around 15 to 20 in about 10' of water. I hit a sand bar. I shifted into neutral and when I did m bow dropped and the stern raised and floated me right over it. Being new to boating I thought that I had dodged a running aground situation. When I tried trailering my boat I noticed it was hard shifting into neutral d back into forward or reverse. Plus I have a chip on my prop. Can my aluminum prop be fixed. I haven't had a chance to go over my lower unit so I will leave that question until I get a closer look at it.