After hanging the Dynatrac knuckle on the housing and popping the inner shafts into the CV assemblies, it was time to slide the RCV shafts into place. Not so fast. The RCV assemblies take up every last bit of room on the backside of the knuckle, and in some cases the knuckle must be ground down around the caliper mount for clearance. In the case of the Dynatrac knuckles, this meant quite a bit of grinding. The urethane CV cup does not fit through the spindle hole in the knuckle, so assembly is handled as shown, with the cup positioned behind the knuckle and then sliding the axle through. Seating the cup over the CV bell took quite a bit of effort and a second set of hands in our case.