2007 Jeep Grand Cherokee Limited 4dr SUV 4WD (4.7L 8cyl 5A)
We have had the vehicle to the dealer 3 times for the same problem....vibration in the driveline. Enough vibration that the vehicle in the rear view mirror looks like it has six headlights. Dealer has replaced both driveshafts and then turned them 180 deg. This was a fruitless effort, however it did improve some but the 180 flip put it back to its previous high vibration.
Navigation and Sirius Radio
Reengineer the driveline. The Service Mgr told me the ends are now CV Joints and not U-Joints.
† Edmunds.com received the highest numerical score in the proprietary J.D. Power 2014 Third-Party Automotive Website Evaluation Study℠. Results based on responses from 3,381 responses, measuring 14 companies and measures third-party automotive website usefulness among new and used vehicle shoppers. Proprietary study results are based on experiences and perceptions of owners surveyed from January 2014. Your experiences may vary. Visit jdpower.com.