Turbo
Hello. I have one too that I just pulled off. According to the paperwork in the glove box it was changed at 115,618 miles on my car and the current mileage shows 122,893 so the turbo has 7275 miles on it. I only replaced it when I went with a larger 4431 Precision turbo. I never had problems with mine and Brian from Gbodyparts helped me tune it in with Eric's TT set up. Despite an exhaust leak the size of my fist everything Brian told me to do worked and the car got faster. I was up to 18psi boost and it spooled perfectly. So like every other kid with his toy I went bigger and faster.
Brian has seen the turbo as well as a few guys from GNS at the Buick nationals too. It's in good shape and has NO shaft play at all. The Horizontal has NO play in it either. Spins smoothly and is dry and clean.
I am asking $300 plus shipping for mine. I know it's more but it's clean and relatively new. I think this is a fair price.