I removed the mesh from the 235 air cleaner when I got the '48 and put in a Fram. I then topped it off with something from the kitchen, thanks to Mrs. Wally. This was only temporary (for the next 12 years) until I installed the 261.

I don't expect anyone else will follow my example but that's OK!!

My Early Air Cleaner Setup.
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1948 3/4-Ton 5-Window Flatbed Chevrolet

34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.