[Rick Parker]

Yes the crack can be in the Hat/Cover. As David described the mesh pattern is to allow for lubricant between the surface of the friction disc and the smooth metal disc, hence the scontrolled slippage. If the friction discs are worn (pattern gone) they will be thinner, causing the stacked height to be less, thus reducing sping pressure and excessive slippage. Trak lock is not advised for drag racing, it will burn up the clutches in short order. It was devised for controlled slippage in OEM configuration, Deroit Locker works for drag racing, but is rough in everyday driving in a light vehicle such as Cobra Replica, because of the harsh locking qualities.