Re: sea king trailer parts
Looking into this further, your trailer appears to be one of those made in the late 1950s or early 1960s. They had coil springs and shocks, and two rods that tied the axle to the center frame member.
They also had wheels and hubs as integral units, with the wheel and hub made in one piece. I did have a trailer like that one at one time.
Finding new springs and shocks is going to be impossible, frankly. I'm pretty sure your best bet is going to be to look for a complete trailer that has leaf springs and separate hubs and wheels. I did replace the hubs and wheels on mine with new hubs and separate wheels, but it was very hard to find hubs to fit those axles and cost me almost $150 for the parts, five years ago.
A new axle, wheels and hubs to replace what you have is going to run you well over $250, and the single main tube of the trailer is not going to work with the new axle, so you'll have to do some welding to add supports for the springs and axle.
All in all, watching your local internet want ads should turn up a complete trailer for less than $200 for your small boat. That'd be my call. Everything you will need for your old trailer will be hard to find, and expensive if you can find it at all. Bearings aren't standard in those hubs you have, and you've already found out that springs and shocks are impossible to find.
I hate being the bearer of bad news, but that's the ticket. I'm betting your trailer looks a lot like this one. Am I right?
