my '99 XC (220K) has been running well for a couple years so have not been on the forum lately. Now my turbo has gone belly up, with all the associated screeching and whining (not me, the turbo) and I will get a rebuilt and install myself (then the screeching and whining will be me). besides the turbo, any advice out there for other things in the turbo side of the engine that I should prepare to check and replace at the same time?? There is oil saturation in the area. any suggestions about sources of turbo rebuilders out there? I've found them ranging between $300 and $600. Thanks for any help