the dodge yoke is setup to run the ujoint with the internal clips, The ones that clip on the ujoint cap, The chevy yoke has the clips that go on the end of the caps, in the yoke on the driveshaft, and two little Tabs on the Pinion yoke..
If you are going to buy a chevy yoke, Get the 1350 yoke, not the 1310 yoke (stock) Then you can run the 1350 u joint, but you will have to have the front driveshaft fitted with the 1350 yoke aswell...
Yes those units are kingpin.
Instead of getting the Chevy steering arm, you can use the dodge steering arm and you wont have to get the 4 inch block to compensate for the lift.