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-   -   Changing rear end oil. (

ggarvey 09-07-2006 06:52 AM

Changing rear end oil.
Hey guys,

How often should the gear oil be changed in a posi-traction
rear end? I replaced the gasket and oil about 2 years ago, but
don't drive much. 1990 GMC 4.3 with 225 miles.

Also, getting ready to change timing chain and gears. Do you
have any helpful hints?
Thanks Geo

302 Z28 09-07-2006 07:42 AM

I like to change it about every 50K miles, but I know people who have never changed it and have 200K miles on their cars and truck. I would use synthetic if it were mine. Royal Purple Max gear oil already has the posi trac additive in it.


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