These flywheels are made for setups that use standard 716 6 speed gearboxes with internal slave cyl pump-bearing units. They will work with all inline engines besides the om613/648 and all v6/v8/v12 engines besides the old gen v8 and v12 which are m116/m117/m119/m120. - 8pcs high strength flywheel bolts included - pilot bearing preinstalled - option for 240 or 260mm friction disc diammeter - option for both Cross (new 2+2) or Octagon (old) crank bolt pattern 240mm flywheel is designed to work with clutch set: Sachs: 3000 951 802 LUK: 624 3234 09 260mm flywheel is designed to work with cluth set: LUK: 626 3026 19 Sachs: 3000 951 824 NOTE: mounting this flywheel requires the usage of an automatic starter ring gear/flex plate. It`s ment to be tightened with the longer crank bolts we supply the flywheel with like a sandwitch. NOTE: It`s important to reset the pressure plate if you chose to use OEM type one NOTE: The flywheels can be used with aftermarket clutch packs like UniClutch. Here`s a video from Anderzen`s Youtube chanel with more info on the topic: https://www.youtube.com/watch?v=qdciiK82Nbg