I found this on Ebay. Get them now if you need them. I’m not sure if they will make any more. I emailed them and they said someone needed gaskets and had sent them the taillights for a pattern. So they made some extras. I asked them if they made gaskets for the front turn signals, but told me I would have to send them the housing for measurements.
those gaskets and many more parts are always available from Gary Goers, kalispell, MT