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8070 FWA Oil
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PAFarmer View Drop Down
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Joined: 06 Oct 2020
Location: Pennsylvania
Points: 114 		Post Options Post Options   Thanks (0) Thanks(0)   Quote PAFarmer Quote  Post ReplyReply Direct Link To This Post Topic: 8070 FWA Oil
    Posted: 21 Apr 2021 at 10:35pm
I'm in the middle of restoring my 8070 FWA and am planning to change all the fluids.  It's up on blocks right now with all the wheels off for painting and seemed like a good time to change the front axle oil.  

What weight oil should I use in the front axle?  What the service manual says or is there something else that's superior?  Same weight for the final drives and the diff?  

TIA
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ryan(IN) View Drop Down
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Joined: 11 Sep 2009
Location: Bluffton,IN
Points: 769 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ryan(IN) Quote  Post ReplyReply Direct Link To This Post Posted: 22 Apr 2021 at 5:47am
80w90 gear oil
ryan
1984 8070 FWA,1979 7060,1975 7040,1971 190,1960 D-17D,1957 D-14, 196? D-19G, 1975 5040,1971? 160,1994 R62
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 21559 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 22 Apr 2021 at 5:57am
I don't have an Owners manual, but if 80/90 is the spec, I would definitely use 75W-140 synthetic oil. A much better quality oil that replaces old technology.
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