Gear Oil & Universal Joints

This is the place to get help with technical matters concerning your M151 jeep

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Deserttmutt
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Gear Oil & Universal Joints

Unread post by Deserttmutt » February 21st, 2009, 2:11 am

Guys,
good day! found a caltex SAE90 GL4 gear oil which i've already used on the differentials. i've read an article before that gear oil such as GL5 should have the "MT-1" designation to be safe on yellow metals such as brass. don't want to gamble on the transmission/transfer case and wanted to make sure if this caltex SAE90 with Performance Standard: API GL4; MIL-L-2105 designation is compatible :D

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photo below is the japanese brand universal (cross) joint i've been using since i couldn't find/buy NOS joints anymore sometime ago.... seems as reliable as the stock joints or much better :) just make sure it's "GU 1000 HD."

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regard's,
-percy-
the LAST 1/4 ton of FUN....

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cstaup
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Re: Gear Oil & Universal Joints

Unread post by cstaup » February 22nd, 2009, 1:00 am

We service automatic shelving that has a lot of brass in the gearboxes. Always use GL5 because of that. GL4 should be fine in the diffs, I havent disassemble the tranny yet, but foran older steel geared system, I would think it's ok.

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