You can position the universal bearings on either side of the yoke on the propeller shaft, install the universal joint spider, press the universal joint spider, install the retaining ring in the yoke, rotate the propeller shaft and the universal joint, install the other two universal bearings and wrap them with electrical tape or equivalent to hold the bearing in place, position the universal spider in the slip yoke, install the universal bearings in either side of the slip yoke, fully seat one of the universal spiders in the universal bearing, press the universal bearings into the slip yoke, install the retaining ring in the slip yoke, rotate the slip yoke, position the slip yoke in the propeller shaft and the universal bearing in the yoke of the propeller shaft, center the universal spider in the universal bearing, press the universal bearing into the yoke, install the retaining ring in the propeller shaft yoke, and then rotate the propeller shaft and the universal joint.