Hey Sealover, and welcome. On my trailer, I put really small wheels and tires on it so I could get the boat closer to the water farther up the ramp. I also lowered the bunks as low as possible. It has worked for me.
I think my wheels are 8 inch. They look like wheel barrow wheels but they are street legal. I got them at Northern Tool and Equipment. They were only $25 each with the tires already on them.
Macgregor, Venture 17 ,#998
Proud to be American !