here's the 68' plymouth book. don't know if it helps. if everything else is in place, and you put the trans and shifter in park, you should be able to make a rod the goes from "A" to "B"
That drawing shows adjusting lever? in place of the typical adjusting block. I dont recall ever seeing that setup.
The typical rod with a flat on it for the typical adjusting blocks' screw to land on isn't so hard to make ( done it ) if you have a donor rod that already has the correct close bend end with cotter pin hole. That OEM rod was drill rod hard though. Torch required to bend it.
All you would need sent to you is a piece of coat hanger bent to correct shape with tape or other marking of length of the adjusting flat.
If you don't have a vise, a torch, and a donor rod... aftermarket has you covered, gets your money.
