Mark Allen

Motorcraft XG8A PTFE Driveshaft Slip Yoke Grease

I spoke with my transmission rebuilder about this common issue. He explained that many GM/Chev truck customers describe a slight clunking noise that often occurs during acceleration from a stop or near complete stop. There is teflon grease that is coated on the splines of the driveshaft yoke that slips into the rear of the transmission. When the transmission fluid and filter are serviced, he recommends always removing the driveshaft with the yoke from the tail shaft of the transmission and re-coating the splines of the yoke with the teflon spline grease. He said GM doesn't offer this spline grease, but Ford offers it. He said that it is common for the teflon grease to dry out and dissipate over time and miles, causing a clunking noise that sounds as though it were coming from the rear differential. The teflon spline grease cushions the contact and connection between the driveshaft yoke splines and the transmission tailshaft splines.

It worked! Steering wheel Information button selection offered; Curb View (On or Off). Turned to off. Does what I need now. I feel quite idiotic after having spent most of a day testing wiring, connections and power combinations trying to modify, in order to acquire the disable feature, when it was in front of my face, literally, the entire time. Thanks so much again!

Thanks! I'll give it a try. I was under the assumption that any adjustment or control features had to be accessed through the display touch screens on newer models.

Is there a way to disable the sideview mirror auto tilt feature on a 2006 1500 Silverado. Occurs when shifting from Park to Reverse. These are power mirrors, heated, manual fold-in.