shudder in front end

My guess would be a bad CV joint that begins to bind as it is turned and applies more stress to the balls inside the joint. As the angle increases, so does the stress on the joint. It could be a bad wheel bearing also. they are sealed units. you can check them by lifting the vehicle and grabbing the wheel at the top and the bottom and trying to move it by rocking it top to bottom. these are just starting points to check.

Does the 2000 Grand cherokee laredo 4wheel Drive have sealed wheel Bearings

Does the 2000 grand jeep cherokee 4w drive laerdo have sealed wheel bearings

Front yes. Rear is a typical axel bearing with a retainer ring that has to be cut or pressed off to remove the bearing.