Reproduction Parts for 1916-1964 Chevrolet Passenger Cars & 1918-1987 Chevrolet & GMC TrucksSHOP ONLINE | ONLINE CATALOG | ABOUT US Forums Members Recent Posts VCCAChat (Readable Only) Forums Technical - By Year... Technical - 1937-19... Defrost to heater a... Notifications Clear all Defrost to heater adaptor 1930s vs 40s Last Post Michael Alvarez (@michael-alvarez) Trusted Member Registered Joined: 9 years ago Posts: 54 Topic starter May 18, 2025 7:14 pm Does anyone have or can direct me to the correct adaptor for my 1938 heater and defrost unit? Modial showed me the difference between a 30s and 40s. The 40s adaptor is taller making contact with the glove box. Quote Michael Alvarez (@michael-alvarez) Trusted Member Registered Joined: 9 years ago Posts: 54 Topic starter May 19, 2025 12:19 am I’ve had the heater for a while. It just purchased the defrost not realizing I need the adaptor plate(whatever it’s called) ReplyQuote Share: