MC9 Rear Diff fluid
 

MC9 Rear Diff fluid

Started by steve.barnett71, August 16, 2016, 04:35:53 AM

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steve.barnett71

Getting ready to tackle the job of changing the fluid in the rear diff of my 82 MC9.   Any recommendations on weight and brand?
1982 MCI MC9
Series 50 Detroit Diesel
Allison World 500 Transmission

robertglines1

Steve;Not a big fan of synthetic for this use. Had problem eith older year units creating noise after change. Would suggest you go back to orignal spec on this one. Available at Busslers on St.  Joseph near diamond.
Bob@Judy  98 XLE prevost with 3 slides --Home done---last one! SW INdiana

luvrbus

I have always used Valvoline 85-140 it meets and exceeds the Rockwell specs 0-76-A ,I wouldn't change to synthetic either unless you changed all the seals   
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