I've had the switch apart twice, cleaning up the contacts, renewing the paper (it's not paper, it's a thin non-conductive plastic-like gasket) between the sliding parts. The problem is the copper contacts inside are touchy. I can set the switch on, and all the lights come on; only to find when I return home that the tail-lights have been off for some unknown amount of time.

Also, these were switched to not illuminate the front blinkers when the headlights are on. Parking position yes; headlight position no!

I'm thinking of replacing it with a more 'modern' 3 position switch like found in 60s era Fords and such, including a rheostat for dimming the dash lights.

Thanks for the replies.