Thread: rear end oil

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Originally Posted by erik erikson

80/90 weight.
You use dyno oil or syth. or you can mix them.
If it is a posi. make sure you add an oil suplement for the posi. clutch's.

While on the topic, just curious.... What synthetic are you guys using in the differential and tranny (manual, not them slush-box thangs! )??

Red Line 75/90......Good stuff....

Good question, I am just getting ready to fill up the S10 rear in my T. Do you guys just recommend the same thing? I was going to go to the Chevy parts dept, but maybe not necessary??


Don

Royal Purple Max Gear 75W90. No need for any clutch additives with this one ........

Kitz

I'm using Valvoline 85W140. 3:70 Posi. Is that not a good thing.Label says for high temp.,performance, and anti slip recommended.

The gears usually come with the required oil info for them,if a swap was done.

Originally Posted by Dave Severson

While on the topic, just curious.... What synthetic are you guys using in the differential and tranny (manual, not them slush-box thangs! )??

I am using AMSOIL fluids in mine. 0w30 in the engine, Supershift in the trans. and severe gear in the rear (no need for additive).