2004 implala vibrates while driving

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.

replace the warped disc rotors , check/ replace the front wheel bearings

If you swerve the car back and forth and the sound dissapeers when swerving to the left( reducing the weight on front left tire) this could indicate a wheel bearing problem

sounds like you have a bad wheel bearing, does sound change going around curves ?

possible tire balance out of whack. cheap quick fix get your tires balanced.

A transmission problem would not make the steering wheel vibrate. Have you ever had the Transfer Case fluid changed? This is required every 50K miles. A qualified transmission technician should evaluate your problem.

I just had the same issue with a 1999 2500HD and the vibration got worse above 50 mph. Problem was resolved with a new driveshaft. Old one (aluminum) was badly out of true and the problem didn't really occur until I had the U joints changed - then bent driveshaft vibration was noticeable. New driveshaft resolved issue.

sounds like you have an alignment problem nothing to really worry about it wont affect your car

Without feeling the vibration, it is hard to speculate, but, my experience here is this: you may have a bad rear wheel bearing. It is covered for 5 years/60,000 miles by Toyota

does it vibrate durreing brak aplicatin, if so probably a out of round rotor,ifatlower speeds just driveing
most ikely a seperated tire