My oil bath unit is original to the truck as far as I can tell, the threaded rod is slightly adjustable at the carburetor bracket and can be unscrewed to allow it to protrude from the top of the air cleaner, a normal wing nut is all that is required for mine.
1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy
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