Follow along with me here. If you switch to 4.88 gears it affects your final gearing. If you switched the high gear in your transfer case, it would do the same thing. The ratios would have to be worked out, but it should be no different. The difference is that many of us can pull a transfer case apart and swap gears out. Lots of us have never tried to re gear a 3rd member.
Fair enough, quick somebody do the math and tell us how different the ratio would be with the t-case gearing and 4:10 or stock t-case gear and 4:88's in the pumpkins