Gentleman... I have started an engine swap on an 86 W250. I have had no problems out of the original engines clutch, there are no signs of heat warping, very little if any wear on the fly wheel or pressure plate... now my question is does any one know the specification of the thickness of the friction material? I know it's cheap of me but I would really like to save this clutch. I mean it looks to me like there is little to no wear on the friction disk but I would like to know what a new one calipers at. Any help? Any one happen to have a new one in box they could measure?