This adapter allows the installation of the VW TDI engine to a Chevy small block V8 / V6 transmission. It uses the stock GM 153 tooth pre 1986 flywheel/flexplate (two piece rear main seal) and includes a high torque mini starter.
Confirm your transmission bellhousing pattern here: chevy-small-block-part2
Confirm your flywheel bolt pattern here: chev-small-v8-pre-87-hub