Along with everything mentioned. Find the tranny troubleshooting in the help stickys at the top. Shows how to adjust Bowden cable and shows what vacuum readings you should be getting for the tranny at various hoses and how to adjust. I cannot remember everything I did but had leaks and needed adjustments everywhere. Followed the guide and shifting improved dramatically. Good luck.

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1981 300TD Black on Black
2002 VW Golf TDI
2003 VW Passat Gasser