I am still seeking replacement clutch parts for the 1968 W100 truck with the (OEM) NP-435 tranny with the (OEM) course-spline input shaft. ALL the listings from suppliers and specialty shops have indicated that the MOPAR (Sweptline) trucks between about 1962 and 1993-ish. ALL used a fine-spline input and, according to 'those in the know' - (on Sweptline.org), this is incorrect. Supposedly, in 1969, the input changed to fine-spline and the P.P. to diaphragm and actuation to 'linkage'. Anyone concur or deny this? My (well-used) disc is the correct 11-inch with the 10-spline (one-inch) hole. Plus, the P.P. has to be of the Borg and Beck style - as correctly used with the hydraulic actuation system - and NOT of the diaphragm style. I may be 'relegated' to finding a clutch rebuilder but hesitate to deal out of my province - let alone out of my country, and would much prefer NEW parts. There are too many issues with (cross-border) shipping and taxes but that is another (long) story - so I will spare all of you the gory details. So, having said this much - - - IS there anyone in BC, or at least in Canada, who has info about a LINK to a source for the (apparently rare) course-splined disc? It's getting near the 'crunch time' with the T-case ready to go in - - etc. Thanks.