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rotorwrench · 02-28-2025, 01:38 PM

Most trapdoor pans were for the big 4-speed clutch. V8s were used in the universal carriers in both 221 and 239 types and they had to have a PCV and oil coolers due to placement in the middle of the carriage. Some big trucks also had PCV in Canada. I'm not sure about US manufacture.

02-28-2025, 01:38 PM	#9
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 18,012	Re: Truck oil pan ? Most trapdoor pans were for the big 4-speed clutch. V8s were used in the universal carriers in both 221 and 239 types and they had to have a PCV and oil coolers due to placement in the middle of the carriage. Some big trucks also had PCV in Canada. I'm not sure about US manufacture.