New forum member here but long time '99 Yukon LT 4x4 owner. 190,000 miles with Goodwrench tranny at 100k, transfer case at 180k, intake manifold at about 100k, front and rear pinion bearings, pitman arm, AC compressor, 1 fuel pump, 1 radiator, 1 water pump...that's about it for the memorable stuff. Need to figure out how to fix ignition switch because I have to jiggle the key a lot sometimes to start it. Bought this rig new and still a comfortable, solid driving, good looking Yukon. Maybe gets 16 mpg with a good tail wind, averages 13 otherwise.