The tech would have rather done a new motor if it was an option. They were backed up 3 weeks before getting to it. took 2 weeks to get done.
A big prime rib will continue to cook after you take it out of the oven, so for a final medium-rare temperature of 130 F you need to take it when it reads 120 F on your instant-read thermometer. Note that the U.S. Department of Agriculture recommends all beef cuts be cooked to an internal temperature of 145 F.
Lastly, when I pick up the ribs with tongs holding them about 1/3 of the way up, they crack some. Set up the grill for indirect cooking over a drip pan under the indirect are with 1/2 to 1 inch of water. Stabilize temperature about 250. Clean and oil grill of course. Prep the ribs. Remove the inner lining and check for bone chips. There seems always to be some. Rub with about 1/2 cup of a dry rub of your choice.