Instead of rebuilding old parts, buy a new Center Housing Rotating Assembly that comes with a 1 year warranty. There are 3 different BNR LNF Replacement/update options, the version 1 GT2871 or version 2 which is the Updated GT2867 G Series! If you don't know the difference between the 2, the V1 has a cast compressor wheel and the V2 is the Billet compressor wheel. Both will not interchange.