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Discussion Starter · #1 ·
Pulled a camper to Florida with it no problem, the while driving around it seemed like it was making a metal sound and not shifting into overdrive cause the rpms stayed kinda high got underneath truck and seen it was dumping out trans fluid what could be the possible cause?
 

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2007 GMC Sierra LBZ
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Where was the oil coming from? Transfer case?
 

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Discussion Starter · #3 ·
The transmission, it looked like the little weep hole between engine and transmission.
 
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