Whats your wheelbase??

[STOCKISH]

So, after shifting my bed around, moving fenders frontward or rearward, Im still not set on my wheelbase. My front wheels are perfectly centered in the wheel openings and the rears are too, however my rear fenders are so beat where they meet the running boards that Im not certain where I need to be. So that being said, please post a good side profile pic of your truck along with your wheelbase measurement. Trying to see what is about perfect for having the front and rear wheels centered. Thanks guys.