There is no adjustment apart from replacing the bushes in the cross member and the drag links
The 100 series are cheap mowers built down to a price for JD by AYP.
IF you want to have adjustable toe in/out then cut the end off the drag links ( both if you like ) thread it then buy a pair of tie rod ends.
They are not cheap which is why they were not fitted in the first place.
Almost no domestic level mowers have adjustable toe in and a lot do not even have a proper joint.
The market gets what the market will pay for.
The market will not pay for adjustable steering so the makers do not fit it.
So true Bert......... Everyone wants a mower for a cheap price nowadays, They want cheap crap and want more money per hour and salaries..... The old saying is you get what you pay for......
That's why I buy all the older L head and Kohler engines I can find........
Now I did say everyone not just certain countries,,,, LOL..... I remember when I was a small kid in 1st grade the school lawn mowers were the Yazoo mowers self propelled with a Horizontal engine and 2 belts on it......One for the self drive and one for the blade........
3 people were running 3 mowers almost daily to keep the grass cut...... In the far away parts a bushhog on a tractor would keep that area at bay..........
My neighbor has a friend that owns a Yazoo like I am talking about and I offered him good money for it...... No sale he says, it's tooooo good of a mower.....
That thing is at least 40 years old..............
Plus Tard Mon Ami........