[TomFasig]

Thanks Guys, I appreciate the feedback. I guess I'll try the commercial detergent method. I'm somewhat afraid of the acid. I guess a good looking trailer is not near as important as a good looking boat. Sounds like I have some plans for the weekend, weather permitting.

[Oregondunes]

careful with the detergent around your boat hull too. Id float the boat for the weekend and work on the trailer by its self

[grommett]

The galvanised finish doesn't look pretty but provides ionic protection from corrosion. Essential for salt water, but still useful in fresh water. I wouldn't touch it.