Been lurking in the background but now I have a question/problem. 1996 Bronco 351W E4OD, when disengageing cruise control from about 75 mph, there is a hard shudder or vibration from the drive train after about 1/2 to 1 second. It feels like I have drifted off the shoulder of the interstate and hit the "wake-up" grooves. This only happens when I turn the cruise off, not when I step on the brake. Any help will be greatly appreciated.