Which is the right bulb for reverse/backup lights
Hi everyone,
one of my reverse light bulb on my "new" 2006 4.6 L is out. Looking into it, all the bulbs are LED. I searched on here but don't find any info for sure. I then looked on ebay, looks like 921, T10, T15, 3156, 3157 are all saying will fit my truck. Does anyone know which come with it from manufacture?
Thanks in advance.
one of my reverse light bulb on my "new" 2006 4.6 L is out. Looking into it, all the bulbs are LED. I searched on here but don't find any info for sure. I then looked on ebay, looks like 921, T10, T15, 3156, 3157 are all saying will fit my truck. Does anyone know which come with it from manufacture?
Thanks in advance.








