I believe that it is the driveshafts that changed. Take a look at this database that lists all the part numbers used in the 1998 New Beetle:
VOLKSWAGEN BEETLE [BE] (USA) 1998: FRONT AXLE, STEERING
There are a lot of different driveshaft part numbers, but most of the suspension parts have one number meaning that the part was not changed during the model year.
VOLKSWAGEN BEETLE [BE] (USA) 1998: FRONT AXLE, STEERING
There are a lot of different driveshaft part numbers, but most of the suspension parts have one number meaning that the part was not changed during the model year.