I went and checked my lights on bertha and they were all rusted upand the bulbs were coroded in the sockets. I went out and bought a pair of the m35 composites for the rear and one of them was rusted some . I was talking to a guy last night about it and he told me to sand blast em and they'll work fine. I did tonight and it really works! both rear lights were beyond repair as the sockets and wires were gone but the fronts were repairable. I had never thought about it but it really works.