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The best way to go is syntheitc 80/90 wt. type like Mobil One. Use it in all 3 areas. If you are doing real heavy duty off roading I would go to 140 wt. in both diffs like I do, it slows down on the wear and tear especially if you are using lockers.
Don't forget to do your brake and power steering fluids also.
Mike J.
Don't forget to do your brake and power steering fluids also.
Mike J.
