i have a 01 xlt 4x4 4.0 auto and from a stop to about 3rd there is a shudder in it. like it doesn't want to shift. iv changed the tranny filter the rear end seal and fluid and its still there dont know what is wrong. i happens when i stop also, even pops cant figure it out and he owned his own shop so maybe you guys have had this problem and fixed it, and want to pass on your knowledge