waterrattler, can you keep driving in 2WD until they arrive?
Wait until you have to actually replace them. Chances are that your rotor is rust fused to your hub and your hub is rust fused to your knuckle. I had to spent $300 on a new hub bearing because mine broke (split apart) while trying to remove it. So a $50 u-joint job turned into $350.
If you split the hub bearing apart without a new one to replace it, you will be off the road until you can find a new one, so be careful.
Also be weary of Dodgeparts.com customer service. I ordered a hub bearing on a Friday and they told me on Wednesday that they were shipping it... I expected it to ship Monday and arrive the next Friday but instead I had to pay for 2 day shipping in order for it to arrive on Friday like I had originally planned. After all was said and done, I could've just gone to the local ******* 1 week earlier and paid full price and gotten my truck up and running the same day.
Dodgeparts.com is great pricing for parts that are NOT in a rush.