Hey all. Joined here just to try and get some help with my 19. Long story short ive put over 15k on loaners since buying the truck in Sept of 2019. Still has the whistling mirrors, noisy valvetrain and trans slips coming to a stop and accelerating. Issues they finally fixed were wind noise coming through the pano roof, cracked passenger exhaust manifold and a few trim pieces. Ive learned to live with the mirrors cause it only does it above 80 when its windy but the noisy valvetrain and trans issue are killing me. Dealer takes the truck in, says they cant duplicate and gives it back. Trans is ok for a hundred miles or so then starts acting up. Ive seen 1 other thread on here where they replaced the trans. Anyone else have this issue?