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The 2004 GMC Sierra 2500HD requires synthetic Dexron VI transmission fluid. It is recommended to change the fluid every 30,000 to 60,000 miles. When the transmission fluid is old, it can lead to noisy sounds and a worn-out torque converter, causing headaches. The transmission is a crucial component of the vehicle and problems will inevitably arise. Difficult shifting, shuddering, jerking, stuck gears, slipping, and delayed shifts are possible issues. Promptly addressing any leaks in the transmission fluid is imperative to avoid complications.
The 2004 GMC Sierra 2500HD requires full synthetic Dexron VI transmission fluid.