Vibration at 55-60mpf - 1998 Dodge Intrepid

It should not.
The ABS system is only designed to aid your braking of your vehicle.
If the vibration is happening all the time you are driving, it should be a tire problem.
If the vibration is happening when you brake the car, it should be a warped brake rotor problem.
God bless your efforts.

I believe this vehicle is equipped with a dual mass flywheel. It may be starting to seperate causing the vibration

This could be the harmonic balancer or the torque converter.

The question is the source of the vibration. Emissions issues may cause engine misfires and vibration. However, new ball joints suggests you experienced vibration in the steering wheel. Worn ball joints CAN cause this, but since replacement did not fix it, the next source is a worn inner CV joint on a front axle. This CV has to smoothly allow for suspension movement, and the concurrent in-out axle movement in the CV. What happens is the CV binds and generates wheel vibration, which can be severe. Have the garage check for wear in the inner CV carriers. Replace the axle if necessary.

Sounds like you need to get your tyres balanced. If the vibration is when you don't touch the brakes only between the 80-100.
If its when you touch the brake pedal and the vibration occures, your disc brakes are warped, either machining or replacement.

The pinion bearing has escessive preload. When this happens there excessive vibration.On 4x4 the front and the rear drive shaft has to rotate at the same speed. you are mainly locking up, the pinion is not moving freely

possibly a bad u-joint. Sometimes a u joint will feel ok but if it is too tight it can cause a vibration. you will need to remove the shaft to feel if a joint is too tight and binding. Or you have a tire out of balance. Usually a driveline vibration is more of a buzzing high frequency type of vibration the kind that puts your foot to sleep and a tire is more of a wheel speed vibration which is a lower frequency vibration.

if it were the rotors it only happens when braking take in have them turn rotors see what happens good luck

sounds more like a ujoint or a center support for the drive shaft. also check and make sure that the flywheel bolts have not come loose. also check the harmonic balancer and make sure it is not seperating

Check the motor mounts. They might be worn or loose which can cause vibration felt when the engine is reved up or running at higher rpms than at idle.