[NeedAntiVenom]

Jim,

To help narrow it - do you feel it more in the steering wheel (tires, wheel bearings, etc.) or shifter (drivetrain).

Some things to look at (some obscure):

Out of round tire - it may be balanced but is it round.
Separated tread tire ply.
Bent rim.
Loose wheel bearing.
Bent axle.
Alignment (tie rod end).
Damaged steering gear.
Motor mount.
Pilot bearing.
Bent transmission input shaft.