Stacked spacers. 4 row RAD shimmed out 1/3 inch. The flex fan has a flat fan profile. Itll lay flat. The steel 18 inch fan I have now has a 1 1/4 inch profile that gets it closer to the RAD. Drawing air REALLY well. This washer on top helped.
Last edited by Guitplayer; 09/05/20251:03 AM.
~ BD. "You won't find me in an old folks home" Pioneer Florida Cracker 1958 Apache Stepside 1958 Apache 1/2 ton Panel 1959 Apache 1/2 ton Panel