what size should i get to fit in spot in bumper? 3", 4"

 

im pretty sure is 4inch.

 

Buddy,...you don't want your fog lights to come on everytime you turn on your headlights,...do you? Like the other guys are saying...make a stand alone kit; a switch for the dash,...wiring, fusible link,..etc.,..(check the internet for "How to wire and install foglights onto your truck".) or here on DF, check/read this thread right here!: "fog light how to re-do" *(some guys install them "behind" the grill)

 

thanks

 

if i ever get around to installing mine i'll do a stand alone switch write up