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Old 03-01-2021, 09:45 PM   #21
35ragtop
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Join Date: Dec 2010
Location: Gold Coast , Australia
Posts: 249
Default Re: Transmission Oil

Rob, I too use the Penrite 85-140 gear oil.
They are a well respected Aussie company that have for years produce oil specifically for veteran, vintage and classic vehicles. I spoke to their tech guy about this and they claim it is safe for our Ford V8 boxes. I pulled my 38 gearbox apart after 2000 miles, looking for a noise which I have never tracked down. The oil was clean and the bronze bits were unmarked after 2 years using the gear oil.
Good enough for me.
Dave
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