Finially got rid of the heat shield rattle on my 04 Escalade that so many have endured. I looked closely at the TSB about the problem and remedy. It mentioned straps for muffler that cures the problem. I called the local dealer today who was out of stock on the straps but quoted me a price of 37 bucks each. Seemed a little steep for a metal strap. At any rate I went to Home Depot and bought 6 large metal plumbing clamps that tighten with the screw. These are the same ones that are found on radiator hoses on older cars. I unscrewed 2 of them and connected them together so that they would go around the muffler and shield. I placed one on each end and one in the center and tightened them down very snug. Then used metal shears to cut off the excess. Drove the truck around all day and the rattle is gone all for a total of 12 buck and completed in 10 minutes in my garage. I didnt even have to use my ramps or jack the truck up. I didnt have a grinder to cut the shield off and didnt want to deal with rusted exhaust bolts to drop down the exhaust to gain access like others have done.
Hope this helps others who may have the same problem.
Hope this helps others who may have the same problem.