New symptom. Start up the truck , slow roll thru neighborhood up to first stop sign, just prior to complete stop feel a ?front end "clunk". Does not repeat after first stop. Any ideas what I'm exp...
My bad...messed up typing too fast and mixed the info up. Apologies to everyone
The clunk/stuck spline with the TSB is for the main/rear drive shaft. If greasing doesn't fix it, they replaced it. Most likely too late now to have GM replace for free