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09-15-2023, 01:41 AM | #1 |
Member
Join Date: Apr 2018
Location: Southern California
Posts: 51
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Best Gear Oil for '39 Trans?
What seems to work the best?
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09-15-2023, 08:14 AM | #2 |
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Join Date: Oct 2017
Location: Smithfield, NC
Posts: 259
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Re: Best Gear Oil for '39 Trans?
One of the early Ford transmission specialists, Van Pelt sales, recommended to me Sta-lube 140 or 75w90 depending on which one you can find. My local NAPA was able to order mine. I went with 140. I have no experience with it yet. I am sure you will get more options or recommendations from those with real experience.
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09-15-2023, 09:25 AM | #3 |
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Join Date: Dec 2013
Location: Waxahachie, Texas
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Re: Best Gear Oil for '39 Trans?
Very important to use 85-140 GL4 gear lube. Be sure it has the API rating of "GL4". The additive package in the GL4 lube does not attack the bronze bushings or synchronizers.
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09-15-2023, 02:03 PM | #4 |
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Join Date: May 2010
Location: From Chicago. Now Nashville
Posts: 207
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Re: Best Gear Oil for '39 Trans?
Sta-Lube 85-90 ordered from NAPA. It’s GL-4 and works great for me.
Wow, I just checked the price. $78 for a gallon. I guess fossil fuel inflation has caught up to their products.
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09-15-2023, 02:37 PM | #5 |
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Join Date: May 2010
Location: Sugar Land, TX
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Re: Best Gear Oil for '39 Trans?
Crude oil is around $2/gallon
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09-15-2023, 02:59 PM | #6 |
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Join Date: May 2010
Location: Coral Springs FL
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Re: Best Gear Oil for '39 Trans?
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https://www.oreillyauto.com/detail/c...40?q=gl4&pos=1 |
09-17-2023, 06:54 AM | #7 | |
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Join Date: Sep 2014
Location: Wiscasset, Maine
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Re: Best Gear Oil for '39 Trans?
Quote:
Glenn |
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