Providing you have the toe set already (if not this must be done first), drive in a straight line and note where the steering wheel is. Pull into the garage and set the steering wheel at that location. This sets the wheels in a straight ahead position.
Unbolt the drag link from the pitman arm. This will separate the steering box from any external limitations. Cycle the steering lock to lock, count the turns. Set the steering halfway between locks. So if you have 4½ turns lock to lock, set the steering at 2¼ from either lock. (hint, use a bungee cord to tie it off to the roll cage so you don't bump it later) Don't worry if the steering wheel isn't straight, more then likely it won't be. This step is only to center the steering box. We will fix the crooked steering wheel later.
Now that we have the steering box centered, and the wheels pointing straight ahead, bolt the drag link back up. Do not force it. Adjust the ends so the bolt drops right in. Tighten the bolt holding the heim to the pitman arm. If the steering wheel is straight (or straight enough if you care) lock down the adjusters and you are good to go.
If you want the steering wheel straight as well there are a couple of extra simple steps. With the steering wheel still in that tied off position, remove the wheel. (depends on what wheel you have but a puller is generally needed. Sometimes with an aftermarket wheel there are enough bolt holes you can just reclock on those holes) Put the steering wheel on as close to straight as you can and bolt it back down. Not done yet. With the lock nuts on the track bar still loose go for a drive around the block. At this point you can reach under and give a minor nudge (half turn is a good starting point) to the track bar. Drive a little more and if it got worse, go the other way. I think it took about 5 adjustments and less then one lap around the block to get that final touch and the steering wheel was completely centered. Lock everything down.
You will now have even steering left to right. If not you have a damaged steering stop bolt at a knuckle. The steering box will be centered while going straight down the road, that is where the steering box is tightest at.
