Move motor back?

Ideally I'd like to get about 2.5" back, but that seems like alot to move it.
if you split the wheel wells and move the front forword you will never see it and you can run a taller tire wen you move your spring in to the fram rails just move them 2inchs. to the front..you are moveing them write????if so no one but you will know but you...if your not afrad of moveing the fire wall moveing the rear will be a walk in the park....Artie!!!!!!!!!!!!!!!