u/Appropriate-Junket62

I’m currently in the market for a Sierra most likely an SLT and am currently in the stage of looking at a 2019 at the local dealership. However, at 30 MPH it has a transmission stutter, I’ve read about a transmission shudder that feels like rumble strips but this is just 3 quick little jerks shifting from 2nd to 3rd at 30 MPH and was wondering if anyone else had this issue or a similar issue?(truck has 136k miles)