If I'm not mistaken the difference is in the pitman arm and center link, the attachment between the two styles of steering are opposite each other, so you have to use a manual pitman arm and a manual centerlink, you cannot use the power pitman arm with the manual centerlink, they both have holes at that end. The manual pitman arm has a ball joint at the centerlink end.
Looking at the Moog control arm bushings, K8237 & K8132, one is to replace a 1-9/16" bushing VS the latter 1-7/16" bushing. I'm hoping to go w/ larger components.
