25mph to 50 mph tire wobble

How old are the good tires? These speeds usually mean belt or balance problem with tires...If new tires, they need to be re-checked for balance...and not out of round...also check for bent wheel...due to chuckhole? Sometimes a bent steel wheel can be hammered straight...hope this helps.

sounds too much like a wheel imbalance, check all the wheel nuts are tight too (I know it sounds stupid but it has happened to me) some off-road tyres have a speed limit set to around 50mph.

Defective rack and pinion steering gear.

I'd have to check your suspension. You think the tires are ok? Did you try rotating the tires to see if it made any difference?

Do this first.. drive this vehicle very slowly on a smooth straigh road. If the wobble is noticed you have a broken steel belt in your tire that fluxuates at different speeds causing this to happen

I'm thinking tires. Have the balance
checked.

it can be any of the above, rotate the tires and see if the noise location seems to change, but the last thing i would suspect is the CV, they just click when turning, the wheel bearing is my choice here, they roar, tires make a diff noise.

I'd guess you have a tire out of balance, it sets up a harmonic around 30 to 35 mph, and at twice that speed, or 70 mph. I suspect if you drove it at 120 to 140 mph, you'd find another one. Could also be a tire that has a belt that has failed.

How many miles on this set of tires, did you get a lifetime road balance on them? Hazard warranty? How soon before you need new tires. Need to take all of these into account, but need to correct the problem before you have a tire failure and a wreck.

Check the passenger side tire.