What tp0d said. That's what I've heard, too. I, like him, will also be doing this soon and I'll probably try that approach. That was recommended to me by long time - now ex - member Illflem.
A friend also with a '98 did his mid-summer. He got the passenger side off pretty easily by banging on the rotor with a hammer (they were getting replaced anyway). But the driver's side was siezed tight. Used a puller on the hub and ended up pulling the bearing apart

A new hub/bearing assembly from Dodge comes with a rotor, so now he has a new spare to unload. So, try not to do this! And yes, you will have to remove the rotor/hub/bearing assembly as a unit, then press 4 studs out to remove the rotor from the hub.
The only other thing I'm concerned about, but didn't seem to be an issue with my friend's truck, even with the hassles of the driver's side, is pulling the axle out through the oil seal.
tp0d - might do what I've been doing, applying a shot of PB Blaster (or equiv. ) on occasion to the big hub nut, the 4 bolts on the back, and down the little funnel-like hole at the top of the hub on the back of the rotor. Take the wheel off first (did mine when having the tires rotated at the tire shop).
-Jay