NP246 transfer case

GM Transfer Case Rebuild and Replacement: What to Know Before You Buy

If your 4WD truck is grinding when you shift into four-wheel drive, leaking fluid from the center of the undercarriage, or giving you a “Service 4WD” warning on the dash, the transfer case is the usual suspect. The transfer case is the gearbox bolted to the back of your transmission that splits power between the …

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