05 Suburban z71

I have a 2005 Suburban Z71 and when in 2wd it will run for several miles then just stop moving like it is in neutral. In auto 4wd it runs just fine. What could this problem be and will it be okay to drive in auto 4wd until I get it to the shop?

Thank you,

Tony.

I have a 2005 Suburban Z71 and when in 2wd it will run for several miles then just stop moving like it is in neutral. In auto 4wd it runs just fine. What could this problem be and will it be okay to drive in auto 4wd until I get it to the shop?

Thank you,

Tony.

Hard to say.

But it would be wise to head for the shop fast..:sarcasmsign: