i had blazers and loved em. i now have navigator cyber whites with silverstar bulbs....i also love these. fogs lights have a beam that goes wide and short, while driving lights have a beam that goes long and narrow. my personal preference , driving lights. i replaced my factory fogs because they were pitted and a factory aiming bracket was broken. i bought the blazers at checker auto for $69.99. i replaced the blazers because i burnt out a bulb and noticed they were already pitted and 1 had a slight crack, bought the silverstars to replace them, and ending up breaking part of the assmebly. the navigators were 39.99 at walmart. the silverstar bulbs were 19.99 each.
hope this helps
2004 Torch Red Coupe
2001 Pontiac Bonneville SSEi - 103,000 miles - Galaxy Silver - Daily Driver
1994 Pontiac Bonneville SE - 209,000 miles - Light Gray Metallic - SOLD