243,000 on the GTP, but it's pretty much been all rebuilt within the last 40K.
428,000 on my 96 Tahoe, which is 100% original. The rear axle got new seals and bearings about 150,000 ago. The front differential and transfer case got new bearings and seals about 200,000 ago. The engine and transmission have never been apart. I'm finally getting a brief, slight slip on very hard pulls as it does the 1-2 shift, so the transmission will come out soon for a rebuild. Still, unless I have my foot on the floor through the 1-2 shift, it drives flawlessly. It's been a good truck. It tows an 8,000lb boat plus trailer and does fine.
