posted January 07, 2003 02:15 PM
Not every 3157 will work. There are many types of 3157, with totally different bases. The 3157 used in Hummer has snap in base with 2 metal contacts on each side, some 3157 has only 1 wire each side, some 3157 has larger bulb as ours but some has tiny bulbs. I have switched to new 3157 "Super White" bulbs I found at Kragen Auto, these are the $7 cheap bulbs, light became white (vs. yellow) with a slight blue tint, the result is excellent.
In the topic: NEW BULBS. all 3 types of bulbs on the front were replaced and reported(with photo).
http://www.elcova.com/groupee/forums?a=tpc&s=2826088551&f=6706011751&m=702606930 2
You can also easily do a search on eBay with 9007(head), 3157(DRL) or H3(fog). Some eBay sellers of bulbs are not professional and do not back up quality as promised, but the search result is very educational to understand the bulbs and prices. I saw 9007 head lamp Super white bulbs by GE at Wal-Mart for $19 a pair.