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View Full Version : Front diff fluid


rcslawncare
01-27-2010, 09:01 PM
On a 03 GMC 2500 HD. Will the owners manual say it, I don't have one. Need to change it. How much and is there a drain hole or do I have to take a cover off? Also, Can I refill it with just the new gear oil bottles or do I need special funnels? Any help would be great!! Thanks!