Re: Vintage AlumaCraft "Queen of the Waters" 15'
Hello again LA. Changing rollers is an easy DIY job, however the swaying back and forth is certainly not good. Make sure that the boat is only resting on the bunks (wooden supports) of the trailer while underway. It should definitely not be resting on the rollers while underway. The boat should also be secured at the bow (front) with both the trailer wench line as well as a safety chain, should the line fail, connected to the bow eye. You'll also want to add some form of tie down for the transom (rear of the boat). I use a small ratchet strap on each of the rear corners of my boat, but other folks will use one large strap, sort of like a large bow. If it sill wobbles and weaves its way down the road, then you may have an issue with the trailer. It may be a simple as a flat tire, or you may need to replace the bearings (Also a fairly easy DIY job).
As for the bottom, and interior of the boat there are a couple different products you can use. The interior seams can be sealed up painting on a 2-part epoxy called Gluv-it. The exterior/bottom of the hull can be sealed with a product called Steelflex. If you do use Gluv-it on the interior seams, it will need some sort of UV protection in the form of either a deck, or by painting over it. However, I would avoid using bedliner type products on the interior. Most folks regret it as it tends to trap dirt as well as making any future repair to the rivets more difficult.