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-   -   Tranny fluid recommendations (http://www.risingsun4x4club.org/forum2/showthread.php?t=18437)

Telly 09-02-2012 01:29 PM

Tranny fluid recommendations
Just picked up a 78 FJ40 (Luke's). I'm base lining the fluids. Seems like there are a lot of opinions on what 90w (GL-4/GL-5/synethetic/dino/ect) to use in the tranny, t-case and diffs. I searched but did not find what I was looking for. Whats the general consenses?

I also discovered my front diff fluid has mixed with the birf grease. Time for a knuckle and wheel bearing rebuild. With only 92k miles, the grease might be original:eek: I'll be posting a separate question on that.


ttubb 09-02-2012 03:09 PM

Tranny and Transfer I use Redline MT-90. It is a synthetic designed for the older manual trans.
DO NOT use other modern synthetics as they will eat up the bushings in the older units.

kurtnkegger 09-02-2012 03:42 PM

I use dino 90wt. I figured that's what was available when mine was built (77), and would be good for replacement...

nattybumppo 09-02-2012 03:56 PM


Originally Posted by ttubb (Post 217819)
tranny And Transfer I Use Redline Mt-90. It Is A Synthetic Designed For The Older Manual Trans.
Do Not Use Other Modern Synthetics As They Will Eat Up The Bushings In The Older Units.


Corbet 09-02-2012 09:30 PM

I generally use what ever Redline product that matches the vehicles needs too when it comes to gear oil.

Telly 09-03-2012 01:22 PM

Redline it is! Thanks

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