altre;
Welcome to this forum!
The first thing I would check is tire pressure!...after that, condition of front suspension, including separating upper Ball Joint to remove Spring preload forces, then checking all bushings and components for slop...
You should introduce yourself, and state your experience and capabilities...then we will know to what level to give advice and suggestions.
Before speaking of modifications, like replacing the Steering Box (a MAJOR re-engineering job!), you should bring the systems back to proper and decent condition, including adjusting the Steering Box (and that means per the procedure, and NOT simply wanging down on the Adjustment Screw!!). Half the time people speak of wanting to "upgrade"...they should first restore!
I invite you to peruse the sw-em.com site to steepen your learning curve.
Good Hunting and Greets from Connecticut!
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