> I have been off the list for a few years (for various reasons  - I
> still have my 83.5 Westy) but I also have the same problem with bad
> corrosion in the left tail light assembly. I just ordered a replacement
> part  but this will be the 2nd time around. Has anybody tried any kind
> of surface coating on the metal circuit strips or making a better seal
> around the tail light  assembly box?  ( I did a search of the archives
> with only one related message from Year 2000 resulting... nobody else
I have used this Gunks  ACRA-SEAL IGNITION SPRAY. PART NO.: M406C
http://www.gunk.com/oe2.asp?pic=M406

on all the external light assembly's seems to work quite well
it like a clear plastic non-conductive coating