SeattleK2500

I purchased a 1999 K2500 Suburban LT with 118,000 in Seattle last month for a cross country trip. I have driven 5,000 miles without an issue until today.

When I make a right turn from a full stop, the drivetrain is rough and there is a slight grinding noise. There is no noise when going straight forward or to the left.

I am in Chicago for 3 days and will be heading to Washington DC to complete the trip.

Any thoughts about what this could be? Is this something that can be left alone until I get to DC next week or could it be something serious that needs to be checked on now?

Any help/advice would be appreciated. Thanks, Bill