Not sure what you're asking? The 2 smaller brackets are for the outside holes under the stock bumper while the 2 longer ones are for the middle holes. Everything pretty much lined up and bolted together without a problem.
Scraping is pretty easy with the bumper since it's much lower. Took me about a week to learn how to drive it so that I don't scratch anymore.
Give the rubber weatherstripping a try. Works pretty well.
Calvin