Hi, I have a 1989 spectrum 17' with 85hp. I recently change the new hub for the trailer, today the Alex broke. The welding came off as it is rusty and old. Now I need to get a new alxe, problem is I have no idea how to buy, I don't even know what is the weight class support to be. I don't know how heavy is the boat...... If there is anone here that have the same boat, please let me know what is the weight class. thanks