Sounds just like X-rust, It works great!
http://www.kanolabs.com/index.html
They only sell on line, the Kroil works on the worst stuck bolts on salt water boats very well!
Nice work savin a little green!
LCjeff
I only have 1 on the pass. side
From the inside edge of the fender to the edge of the light at it's widest (rear most) corner. 2.25"
From the bend (in the front) of the fender to the front most tip of the light,
6.25"
Hope this helps,
LCjeff