They are the same amperage (2.1a and .50amps) but different base configurations.dshirley, where did you find what bulb you needed?
I had a tail light issue and was looking for anything related and found this. My rear left turn/brake light went out (I thought, it just worked loose), so I looked at the Sylvania book and it told me it required the 2057. I didn't think twice about it, although I did double check to make sure.
So I bought them, get home, take the assembly apart and THEY DON'T FIT. Totally different bulb setup. I checked on Sylvania's website and it says the same number (2057). But I did a Google Image search, and found the same bulb that's in my truck. What dshirley mentioned above, the 3157.
Now I'm wondering what's going on.
Sorry, I didn't provide the full dual filament explanation.No, the headlights work fine, the dash lights and the tail lights are the only things that are effected
The tail lights are fused by fuse 14 (junction block) 15amp. After the fuseIm back with the same problem, when I turn on the head lights, the fuse for the tail lights and the dash lights blow. The turn signals work and the brake lights work, is there a good wiring diagram available,