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GB SISSON · 03-31-2026, 08:17 AM

Yes, needed in both heads and are quite necessary. My favorite thermostats are from a subaru justy. I have used them in 59ab and 8ba with great success. There are a few tricks for keeping them in place within the hose, such as a small wire or in my case a smaller piece of hose just above the thermostats. Some people use two hose clamps. Not really sure how Ford secured them, but I think originals were a different configuration. I'm hoping someone chimes in with the part # for those thermostats.

03-31-2026, 08:17 AM	#3
GB SISSON Senior Member Join Date: Jan 2014 Location: Orcas Island Washington Posts: 6,202	Re: thermostat(s). 59AB Yes, needed in both heads and are quite necessary. My favorite thermostats are from a subaru justy. I have used them in 59ab and 8ba with great success. There are a few tricks for keeping them in place within the hose, such as a small wire or in my case a smaller piece of hose just above the thermostats. Some people use two hose clamps. Not really sure how Ford secured them, but I think originals were a different configuration. I'm hoping someone chimes in with the part # for those thermostats. __________________ Owner/Operator of 'Jailbar Ranch' on the side of Mt. Pickett. Current stable consists of 1946 1/2 ton pickup turned woodie wagon with FH V8, 1946 Tonner Pickup with 226 H six, 1979 Toyota landcruiser wagon, now wearing 1947 Ford Jailbar sheet metal. 'Rusty ol' floorboards, hot on their feet' (Alan Jackson)