2005 chevy trailblazer_ls
Well if your like me you've been confused since birth what the difference is. Well there isn't much of a difference. My BACKSPACING is 3.75in. My OFFSET is -19mm. Just a different way to measure it. Here's a link to a great page that explaing and shows you everything you could possibly want to know about a rim. :tiphat Scroll about halfway down to see a backspace --> offset conversion chart. Makes searching for rims 10000 times easier.