Adjusting manual steering box.

My steering box is a little too tight. I know to do it as the service manual
states I need to disconnect the pittman arm etc but I'm kind of lazy at
the moment.....

Are there special tools to adjust the large nut where the steering shaft
goes in? Anyone have an easy procedure?

I loosened the adjustment on the top 1/4 turn and it helped some but
I think it's the large adjustment that needs to be backed off some.