What kind of bulb do i need for 2k wiring harness to make it fit in the 2k2 tails?

i was sure i read somewhere here that i could just get the shell of the 2k2 tails and didnt need the bulbs that came with them, so thats what i got. the amber bulb, which is the blinker bulb, is too big to fit into the 2k2 tails so im currently without any rear blinker lights. is there a bulb i can buy that is the correct size to fit into the 2k2 tails but still fits in the 2k wiring harness or do i have to buy the 2k2 wiring harness with all new bulbs?

i take it from the lack of replies that i am screwed?

do i just need to buy the wiring harnesses then? its only one bulb that doesnt fit, the other 2 work fine...

i dont know, but check the FAQ on top