I own a 2004 Silverado 6.6L LB7 Duramax. My New Transmission Jerks & Clunks Around 50% Of The Time When Coasting/Braking To A Stop. My original transmission gave up right around 230,000 miles in February 2019. I had a brand new transmission installed March 2019 (exactly 1 year ago) and I've been having this problem ever since the day that I drove the truck from the shop. After a couple months of it acting up I took it back to the shop where I got the new transmission, but the guy told me there is nothing wrong with his work... Now, a year later, I am still having the same issue. Is this something I should be concerned about? Have y'all had this same issue? Does is eventually go away? Would love some feedback about this.