Basically, the original design for the clutch and flywheel kinda sucked. So they changed it, but you have to change both parts together (you can't use a pre-TSB flywheel with a post-TSB clutch).
It kinda makes the job a little more expensive, as you are forced to buy both parts, but, in my opinion, it's worth it. A light aluminum flywheel is a night and day difference when compared to the pre-TSB dual-mass flywheel (that thing is heeeeeeavvy).
Zetec....is that like Vtec or something???
Zetec Crew #103/ATX Faction #27 (retired)