Gear Oil - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 03-11-2001, 09:36 AM
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Gear Oil

I have an 1979 Scout II, 727/D20:

What weight of gear oil should I use in the front and rear dif's? How many quarts required? Will Mobil 1 sys. gear oil work/recomended?

While I'm at it, I want to change out the xfer case oil. Again, what weight, how many quarts and Mobil 1?

Thanks for the responses.

Archie Gallup
Bath, Maine

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post #2 of (permalink) Old 03-13-2001, 08:12 PM
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Re: Gear Oil

Differentials come from the factory with 90W and fill till it runs out of the fill hole
Transfer cases are all different. I have info on TC-141,TC-142,TC-143,TC-145. Check for info on ID number plate. Let me know and I will relay info back. No info on 727/D20 or Mobile 1. Don't like syn. oils.

post #3 of (permalink) Old 03-14-2001, 07:57 PM
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Re: Gear Oil

I do need to know how many quarts of oil the differentals take, so I know how much Mobil 1 to buy. The stuff is expensive and I dont want to buy more than I need. Anyone have any info?


Archie Gallup
Bath, Maine

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