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RckyMntnKng · 05-07-2009, 02:29 PM

Interesting because when i did the Front 60 and rear sterling 10.5 in my superduty the manual called for 70w90 in front and 70w140 in the rear, or something to that effect.

I remember I didnt have to use the slip additive in rear due to the open diff. but it called for so many ounces of something if it had a posi.

05-07-2009, 02:29 PM	#3
RckyMntnKng Registered User Join Date: Apr 2007 Location: Meridian, Idaho Posts: 316	Re: Gear oil Interesting because when i did the Front 60 and rear sterling 10.5 in my superduty the manual called for 70w90 in front and 70w140 in the rear, or something to that effect. I remember I didnt have to use the slip additive in rear due to the open diff. but it called for so many ounces of something if it had a posi. __________________ 71 Jimmy: D60/14BFF, 9"F/11"B Lift, 350-350-203-205, Crossover Hydro steering, Beadlocks, Tube stuff and the bottomless cooler