Thanks for the quick replies!  
The guy that weighed my rig really scared me after had showed the results.  Then again, every  rig like mine would have the same unequal weight issue because of the slide. I have almost nothing in the overhead cab…a few books and a small 12v flat panel TV.
If it was a real safety issue, wouldn't there have been a safety bulletin issued, or they would have been sold with different tires (I bought new).
Seems like Coachmen would have some legal issues if they sold coaches with insufficient tires for the weight.
I'm not a speed demon.  I like to set the cruise control at 60 and see the countryside.  
I'll make sure the pressure is up to 80 and keep an eye on what I put in that front left side.
Any other opinions would be appreciated. I'm still open to replacing the wheels in the front if necessary.