It seems that '66 is an orphan year for this switch. i checked several catalogs and found the Muscle Factory has them , but for the price it says "call" , which means many$$$.
The number is 800 762 0317
A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. Come join the discussion about restorations, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more!