Front diff fluid

Discussion in 'Trucks and Trailers' started by rcslawncare, Jan 27, 2010.

  1. rcslawncare

    rcslawncare LawnSite Bronze Member
    Posts: 1,684

    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!

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