I replaced the four in the back with LEDs and kept the 1157 bulbs in the front. I could not get the turn signal to work with six LEDs. So I bought an electronic flasher and replaced the 2 front LEDs with standard 1157 bulbs. Everything works as it should. You have to buy the correct color LEDs to match the color of your lense. RED for RED and White for White or Yellow for Yellow. LEDs burn cooler.
Dwight
Go to Ebay and seach LED 1157
http://cgi.ebay.com/ebaymotors/1157-...QQcmdZViewItem