so that is the small output shaft.
I went with
https://catalog.larescorp.com/part/1031/
this one instead with the larger output shaft, so I could use the newer pitman arm, which was easier to find and cheaper.

advanced auto used to sell them and you could get a discount coupon. but looks like they don't carry them any more.even though it shows in their where to buy.
oriely's shows it, but it is crazy cost. so may not be worth it. I only paid 150 for mine, but they list it at 800 now.

but 1 think to mention. I talked to lares after trying to get my car aligned and they said not to let them do it with the car off. it has to have power assist while they are trying to turn the wheels, or it could damage or twist some part inside causing some slop or alignment with the wheel issues.
which I think was too late for me, but just so you are aware.
I like a centered steering wheel, but it is off, and as close as the guy could get and track straight. there is some play but my front end is completely rebuilt, so whatever it is, is straight up from the gearbox.