Just ordered a piar of Black/Clear tailights and need some LED's for the back. I have a 99 so its three bulbs in the back, brake, turn signal, reverse. The reverse i can keep a regualr bulb, but need the number for the two other bulbs? anyone know

thanks!

 

For 1999:

3157 stop/tail
3156 turn signal
3156 reverse

 

whats the difference in 3157 and 3156, and 3457? always wandered

 

3156 is single filament for apps like backup lights or dedicated turn signals.

3157 is dual filament for apps like combination stop/tail or a front parking/turn combo.

3457 is the same style bulb as a 3157 with the same base. However, the design current through the individual filaments is different for different applications. There is a large family of bulbs like this of the form 3x57 and 4x57.

Companies that sell LED bulbs often group these bulbs together and offer a single "one size fits all" replacement for all of them.

 

ok so i will need 2 3157s, and 4 3156s for both the tail lights? I can only find 3157 on stylinconcepts. would my local autozone have them ?

 

Just be carefull because I tried thi on my 91 Centurion and it put my auto in a state that was like being in neutral. It raised the rpms about 200 so it could glide.
The reason was there was not enough power going back thrw the ground wire to the pcm.

If you experience this you ill know what is the problem.

 

alright thanks man, hopefully that won't happen

 

try advance autoparts if auto zone doesnt have them.

 

I'm running out of luck, stylinconcepts only has the 3157s and idk is Jusnes will fit my truck. I guess I'l just go to auto zone, thanks guys!