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.
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Last edited by Guitplayer; 09/05/2025 1:03 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