Sometime when I put it in 4High while I am driving at 45 and below it will clunk real hard. Sometimes coming out of 4 high into 2 wheel drive it will do the same thing.

In 4low it doesn't always want to go in, and when it finally does I have rock it to get it out.
Also when shifting from 4 high back to 2wd. I hear a light squeeling/scraping sound for a while.

Sound like bad hubs? It is under warrenty (sp).

Thanks for the input!