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Discussion Starter · #1 ·
Can anyone please point me to the location of the transfer case drain plug on my 1994 GMC Sonoma? I found the fill plug, but did not see a drain plug. Also, I assume it takes regular gear oil (80-90). How much gear oil does it take to fill the transfer case? Any help is greatly appreciated.
 

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Discussion Starter · #4 ·
Looking at my owners manual, it shows a transfer case fill plug and drain plug. It also shows a front axle fill plug. Are these two different things? How do you drain the front axel? Does one take gear oil and one take tranny fluid? Now, I'm really confused!
 

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Discussion Starter · #5 ·
OK, I found the transfer case and located the drain and fill plugs. How do I drain the front axel? Is it necessary to drain the front axel, of do I just keep topping it off as needed? I would prefer to drain it, so that I may add Auto-Rx. Same with the transfer case. Any help would be appreciated.
 
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