What diff/ axel fluid to use??

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Author Message   Jason Smith (Smithers) New Member Username: Smithers Post Number: 9 Registered: 02-2003 Posted on Saturday, March 15, 2003 - 02:04 am:    I'm replacing my brakes this weekend, so I need to refill my rear axel. What do you suggest for fluid. Also how much do I need. Thanks   Paul T. Schram (Paulschram) Senior Member Username: Paulschram Post Number: 1148 Registered: 02-2002 Posted on Saturday, March 15, 2003 - 07:30 am:    Jason: Not sure why you will need to refill your axle for a brake job-are you replacing rotors also?, but I use 90 wt. gear oil. The rear axle requires 1.7L per the shop manual.   Dean Chrismon (Chrismonda) Member Username: Chrismonda Post Number: 79 Registered: 12-2002 Posted on Saturday, March 15, 2003 - 07:48 am:    The way I filled my axles was I kept pumping to wash out any old fluid, Then let it drain out till it stopped replaced plug.   John Moore (Jmoore) Senior Member Username: Jmoore Post Number: 484 Registered: 10-2002 Posted on Saturday, March 15, 2003 - 10:28 am:    I use mobil 1 gear oil in my axles. I'm with Paul, I'm not sure what breakes and gear oil have in common.   Marty Koning (Rover) New Member Username: Rover Post Number: 2 Registered: 02-2003 Posted on Saturday, March 15, 2003 - 12:03 pm:    Unless you have your truck on a severe angle or the diff is over filled you will not loose any fluid. It would be a good idea to change the fluid. I also ust the Mobil 1 synthectic. The easy way to fill the diff is to buy a small hand pump that attaches to the bottle.