I have a 1999 Olds Bravada, with the ATC fuse pulled there is no jerking, it immediately goes away but if i re install the fuse it jerks when accelerating, and it dosnt bind when turning, just jerks when accelerating, and at highway speed. especially when it gets hotter, when the engine is cold it doesn't do it, I changed the fluid to the Auto Trak II and that helped a bit but it still does it.. the tires are different brands, the rears are new and have at least 90 % tread and the fronts are at about 30- 40 % im assuming that's my issue but not sure, is it safe to drive it with the fuse pulled? Or am i still damaging the transfer-case even though its not engaged? The AWD works really good in my back yard, kicks in immediately.. Any ideas?