I'm getting ready to replace the a/c compressor on my '99 Suburban. I've read that some of the new factory Delphi units can leak where the case is split. I have a new Four Seasons unit lined up for the swap. I have not seen any negative reviews on the Four Seasons compressor, and it is pretty comparable in price to the Delphi unit. Anyone have any experience with Four Seasons equipment? Thanks for any input.