Different Sized Tires Front/Back

Is it ok to have 235s on the back and 31s in the front? I just need to drive it tomorrow and then I can change all the tires to the same size. I will not be using 4 wheel drive. The transfer case is a NP242 if that matters.

Just keep it in 2wd.

as long as you're in two wheel drive it shouldn't matter. I drove around with 4.88's out back and 4.10's in the front for two months saving money for the gear job. Just be smart and don't get tempted to engage the t-case, or better yet, pull the front shaft.

I only need to leave it for a day and then I'll have it all matched up. Thanks for the help!