My transfer case woes continue... (99 suburban with the NP246 AutoTrack transfer case, 1/2 ton) My front output shaft went through the last few months without a dust boot (had the MOST difficult time finding one). the driveshaft is now stuck on there (thanks to SMAG- snow + magnesium chloride = welded on parts). I've been spraying with PB Blaster for the last 4 days and I"m seeing some progress, but it's still not budging. Now it's making a squeaking noise when I drive (in forward only) that I think is coming from the front output shaft seal of the transfer case. Is it possible that the PB Blaster is causing some the seal to squeak? If so, how do I get it to stop? Starting to look for a lower mileage suburban now. Ever since I've hit about 175K it's been one problem after another. Thanks to everyone who contribute on this forum- GMTC rocks!