wheel spacer
 

i have a 95' GMC Sierra and i was looking in to putting wheel spacers on it to give it a little a better look. i was thinking about puttig the 2 in. spacers on and was just wondering if that was a good idea or not. i want the tires to stick out far enough where it would look good but i dont want to go over board on it. i'm not really sure how far the 2 in spacers would make the tires stick out? i was also wondering if the best way to go is to buy 2 in spacers for all four tires? as it is stock, the front tires already appear to stick out further than the back, so does this mean i should be buying a different set for the front and back to make them look flush with each other? thank you very much for your help