okay, got the tech to check the truck out again. front right drive shaft loose causeing failure to engage. said it had something to do with my leveling kit. also, I get a new transfer case...... yay. also finally getting the other exhaust manifold replaced as well. hopefully no more problems after this. and the brake light was comeing on at acceleration due to a slightly low brake fluid res. I asume the slip light was comeing on because of the front drive shaft deal but still don't know why it was turning on in 2wd....:huh: