Was pulling pump to put in new wear ring and bearings on a vx I bought. Pulled housing and couldn’t get tail shaft out of prop. Tail shaft was completely shot. Tried to get unthreaded and couldn’t so just pulled whole shaft off. Threads rolled in prop when tried to remove from shaft. Ordered new Solas prop, tail shaft and used stock front shaft. Problem: Front driveshaft goes in to engine bay with splines. Prop has splines and threads. No splines on tail shaft. What is wrong?