Having a issue with my 2024 -2500 diesel where the truck sits for a few hours and once I start up the truck I’m getting a grinding sound.once I start driving it gets worse and then it stops a few minutes later.Ive brought the truck into dealership and they said they could not find the problem.I use this truck for my work and need for towing but no way in hell I’m towing anything with this problem as to me I believe it’s a transmission issue.What’s your opinion or thoughts on this ?