LED taillight problems

Application: 1997 chevrolet 1500 pickup

I got a pair of 3157 LED taillights (red) by APC last weekend. The package indicated that the 3157 would work in place of my stock 3057s. I replaced the stock bulbs with the new LEDs and tested them. the turn signals double flashed and when i turned on the parking lights, the fuse blew...repeatedly. I heard that in order to make these work, i need a variable load or heavy duty flasher to replace my stock flasher.

question 1: where can i find a flasher replacement (I already checked auto zone and Oreillys

question 2: will getting a new flasher keep the fuse from blowing when i turn on the parking lights?

I believe if you find an electronic contolled flasher, that should solve your trouble.  there's is not enough load for your factory style flasher to work with the LED's

Quote: "The package indicated that the 3157 would work in place of my stock 3057s"

i'd say take it to where u bought it, explain the problem and maybe they can tell u whats going on. if that doesn't work, i'd say find a suitable current that can run them with a fuse that will last and run it through a relay so when the parkers turn on the relay turns the circuit on, i hope this helps, good luck