Well, being a 489 means you have a "crush sleeve" on the pinion that determines bearing preload on the pinion. You certainly did not replicate this on the yoke replacement. That's not easy to do even if you know what you are doing.

Do not drive it. Your looking at a pig removal, pinion removal, new sleeve or spacer upgrade and reassembly. A fair amount of work.

I suppose as a last ditch, you could try checking for pinion slop (for/aft) and torquing till that's gone, but that's a pretty shade tree approach!