Transfer Case Capacity

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Well guys, I already changed my front and rear axle oil, apparently it was the original at 67k miles, and I was getting chatter from the Rear end upon take off. Refilled with Amsoil Extreme Pressure Severe Gear Synthetic 75w-90 and so far, after 1 month, the rear axle is performing excellent! The front axle I just changed tonite, and that brings me here.

I want to change the fluid in the Transfer Case. Its a 2002 Envoy. What is the capacity? Any recommendations on the refill? I have a quart of the GM transfer case fluid that goes back in there, I bought it for top offs. I just was curious of the capacity, I dont want to drain it and then find out it takes 2 or 3 quarts and Ive only got one and the dealer is closed...lol...

[tiresRround]

2qts