not sure if my 1974 110 L&G would be considered vintage steering adjustment

[sonnier00]

I have a 110 L&G 10hp square finder 1974. I found a pfd manual for it and use it. But I.m stuck on the steering adjustment. The tractor turns sharper to the left then the right. The steering wheel turns 3 rounds from stop to stop. When driving it turns to the right 1 round 2 rounds to the left. The manual reads it should turn the same in both directions if it dose not the link from the steering gear box need to be adjusted. Okay did what the book said but the link can not go any shorter.
Okay the question how long from end to end measuring straight across is a link bar and that the link bar from the gear box to the left spindle