CASO and Bill - yes, i got that pair in the kit from LMC. as you can see in the picture in the first post of this thread, it seems to show this seal/gasket as going between the fender and the fender extension at the front.. so that is where i put it before i riveted those together. now that my fender is on, i think i will shove some foam in the opening - i don't want to take my fender off for that.

thanks for the response