71 duster front end help

I would not worry about it until you get it on the ground "on weight" and rough in the alignment a bit.

What is the front end combo?

That is..........what year K member?

What year center link, IE it been converted to "large spline" 73/ later?

Is there ANY chance the box is loose on the K?

I have to tell you the absolute truth......I've never bothered to measure whether my tie rod assemblies were both the same length !!!!!