Can anyone tell me? I want to put 6 k in my foglights but I dont know the bulb size

 

Any auto parts store usually have reference books in their lighting aisle, personally I always take a bulb with me for reference because like other parts my vehicles seem to not match what the manuals say, Murphy's Law

 

9143 or H3, here is all of them for your truck http://www.sylvania.com/en-us/applic...el=515&make=20