Check the listing for details. BR) One Pair Rear RED LED Bulbs / part # WCCC1157RPR / For Sequencing taillights. Condition: New. Listed at 38.95 USD. California Proposition 65: WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.govYou are purchasing one pair of REAR RED LED bulbs. Made By Cougars Unlimited; Part # WCCC1157RPR Use the chart below to determine how many pairs of RED LED bulbs you will need and to see the requirements to convert to LED bulbs. These RED LED bulbs are specifically designed for sequencing turn signal systems. They have been modified by adding a current limiting diode. This stops the reverse current flow that causes sequential tun signal systems to malfunction. They replace the original 1157 Incandescent bulbs. They are not recommended for use with other makes and models other than the ones listed below. Note: Front LED bulbs should be Yellow and Rear LED bulbs should be RED. MAKE AND MODEL CONVERSION CHART Cougar 1967 Rear – 6 RED LED bulbs / Front 2 Yellow LED bulbs NOTE: The under the dash flasher can (indicator relay) will not work with LED bulbs and will need to be replaced if you want the dash indicator lights to work. (Cougars Unlimited electronic flasher can C7WY-13A366-CR) Cougar 1968 Rear – 6 RED LED bulbs / Front 2 Yellow LED bulbs NOTE: The under the dash flasher can (indicator relay) will not work with LED bulbs and will need to be replaced if you want the dash indicator lights to work. (Cougars Unlimited electronic flasher can C8WY-13A366-AR) Cougar 1969 1970 1971 1972 1973 Rear – 6 RED LED bulbs / Front 2 Yellow LED bulbsNOTE: Replacement of both the sequencer board and flasher can is required! (Cougars Unlimited LED board C9WY-13A366-AL and LED flasher can DOWY-13350-L)For Cougar 1970 you will also need a Cougars Unlimited DOWY-15A434-LSM Side Marker LED Adapter KitFor Cougar 1971 and 1972 you will also need a Cougars Unlimited D1WY-15A434-LSM Side Marker LED Adapter Kit Thunderbird 1964 Rear – 6 RED LED bulbs / Front 2 Yellow LED bulbsNOTE: You must convert the turn signal system to a sequential system! (Cougars Unlimited LED conversion kit TS-400-64T) Thunderbird 1965 1966 Rear – 6 RED LED bulbs / Front 2 Yellow LED bulbs NOTE: The under the dash flasher can (indicator relay) will not work with LED bulbs and will need to be replaced if you want the dash indicator lights to work. (Cougars Unlimited electronic flasher can C5SZ-13A366-CR) Thunderbird 1967 Rear – 8 RED LED bulbs / Front 2 Yellow LED bulbs NOTE: The under the dash flasher can (indicator relay) will not work with LED bulbs and will need to be replaced if you want the dash indicator lights to work. (Cougars Unlimited electronic flasher can C5SZ-13A366-CR) Thunderbird 1968 Rear – 8 RED LED bulbs / Front 2 Yellow LED bulbs NOTE: The under the dash flasher can (indicator relay) will not work with LED bulbs and will need to be replaced if you want the dash indicator lights to work. (Cougars Unlimited electronic flasher can C8SZ-13A366-DR) Thunderbird 1969 Rear – 6 RED LED bulbs / Front 2 Yellow LED bulbsNOTE: Replacement of both the sequencer board and flasher can is required! (Cougars Unlimited LED board C9WY-13A366-AL and LED flasher can DOWY-13350-L) Thunderbird 1970 1971 Rear – 10 RED LED bulbs / Front 2 Yellow LED bulbsNOTE: Replacement of both the sequencer board and flasher can is required! (Cougars Unlimited LED board C9WY-13A366-AL and LED flasher can DOWY-13350-L)For Thunderbird 1970 you will also need a Cougars Unlimited DOWY-15A434-LSM Side Marker LED Adapter Kit Shelby Mustang 1968 Rear – 6 RED LED bulbs / Front 2 Yellow LED bulbsNOTE: Replacement of the flasher can is required! (Cougars Unlimited LED flasher can DOWY-13350-L) Shelby Mustang 1969 1970 Rear – 6 RED LED bulbs / Front 2 Yellow LED bulbs NOTE: Replacement of both the sequencer board and flasher can is required! (Cougars Unlimited LED board C9WY-13A366-AL and LED flasher can DOWY-13350-L) NOTE: NO Refunds once the bulbs have been opened! Bulbs have a 1 year limited warranty.