Hello all, I recently visited a local auto repair shop to get my transfer case serviced on my 96 silverado. They ended up replacing the transfer case with a used one off a 97 yukon with 91,000 miles. They also replaced the inner seal, front u joints, rear u joint and a couple other exhaust parts. I finally got the truck back, and after a couple days of driving, there is a brown fluid (kinda looks like gear oil?) dripping from the skid plate below the transfer case. When I get my head under there, the fluid is on the underbody of the truck (small patch in one area) on the right upper side of the transfer case and on almost all the frame bars where the skid plate is attached too. The transfer case seems clean along the drain plug and fill plug, but the fluid seems heavier between where the case and the tranny pan are close to each other. (I hope Im right on the placement) Has anybody every seen this? I guess im asking as in could it be possible the transfer case is filled with gear lube and not the correct transfer fluid?