One problem related to front suspension hub has been reported for the 1998 Volvo 770. The most recently reported issues are listed below.
Consumer stated that the steer tires had to be replaced 6 times and some due to tire blow outs, also the bearings were replaced, the 5th wheel had to be moved back due to vehicle being overweight and also causing the steer tires to wear, the right front hub was leaking, vehicle was experiencing severe front end problems, there was a serious air leak, the steer axle was leaking, the lower skirt was cracking, there were valve and air dryer problems, and the wheel seal was leaking.