Before my trip to S.C. I noticed a nail in the LR tire. I called the dealer and found out, they only plug tires. They do not patch them. I went to Mr Tire one mile from the house. What a mistake. When asked year and make of my RL they had no information. As I explained tire size, rim type, and the rims have TPM sensor in it, the cost for the repair went up and up. At this point I should have left. I had to run around a bit so I waited and had it done. Once I got home I broke out the torque wrench and checked the lugs. I noticed there was no weights on the rim. I called and the guy assured me the rim was balanced. I have never seen a rim balance out with no weight. I retorqued the rim and drove the truck. I had no vibration. When I have the tires rotated I will have this tire rebalanced. $37.00 to patch a tire is terrible. I will never go back there again. I later found out Walmart charges $6.50 to patch a tire, and they mark where the tire was on the rim and put it back to the same spot. Don't know if I trust this way either, but I could have saved some money. Oh yeah It was Mr Tire on Liberty Rd. in Eldersburg Md.