The Ford Barn

30ratrodder · 05-12-2012, 07:16 PM

Hi All
What weight of gear oil do I need to use in a 39 top loader tranny and a 40 banjo reared? Thanks

MuskegonFlatheadFan · 05-12-2012, 08:32 PM

i use 90-145

Vic Piano · 05-13-2012, 03:46 PM

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I use 85-140 in the transmission and rear on all our Flatheads except the '53 Ford-O-Matic...

05-12-2012, 07:16 PM	#1
30ratrodder Junior Member Join Date: May 2010 Posts: 11	39 tranny 40 rearend Hi All What weight of gear oil do I need to use in a 39 top loader tranny and a 40 banjo reared? Thanks

05-12-2012, 08:32 PM	#2
MuskegonFlatheadFan Senior Member Join Date: Sep 2011 Location: Muskegon, MI Posts: 252	Re: 39 tranny 40 rearend i use 90-145

05-13-2012, 03:46 PM	#3
Vic Piano Senior Member Join Date: May 2010 Location: Odessa, FL Posts: 7,611	Re: 39 tranny 40 rearend Sponsored Links (Register now to hide all advertisements) I use 85-140 in the transmission and rear on all our Flatheads except the '53 Ford-O-Matic... __________________ Imagination is more important than knowledge.