[LGAFF]

He had examples of what a bad DM looked like...

1)They will clank/rattle or knock as there is a bearing in the center that goes

2)Warpage..which is easily to find

I asked about what the average movement is for a DM and he said a nomrally functioning DM will have about 12 degrees of play in it.

Also told me why there are no more pressure plates, apparently Valeo moved manufacturing to South America and the factory went belly up anf the hat molds were lost.....so no more, only cheap ones from China...