Hey all, I have a 2007 (07-13 body style) Silverado LTZ. It’s a 5.3L V8. The issue that I’m having that is confusing me is that whenever the truck is decelerating to a stop, the truck shutters with each down shift but usually only in the lower 3 gears. It’s also doing the same thing when I’m just slightly pressing on the gas, like maintaining speed on a highway. I’m thinking new plugs wires and maybe transmission flush, but am not confident it will remedy my issue(s). Any help/advice is greatly appreciated!!!

thanks and God bless

 

Possibly the torque convertor. I have a shutter when I take off in my 07 classic. Have been told it's the convertor.