4 wheel dr problem

What is your question?

i have a serento 4 wh dr problem when i drive straight no noise or problem but when i turn a corner i hear a growling plus rear tires will bark and drag if i take rear dr shaft out no problem i have gone thru the rear end cleaned out lubed clutches and reistalled it in car aslo added friction additive still have problem also unplug one abs senson still have problem also disasemble front end all gears turn freely next is transfer case i need help bad please if anyone has an answere please reply to me at hayn5951@charter.net thank you