I have an 07 silverado 1500 5.3,
when I accelerate onto the highway the rpms reach 5500 before it trys to shift,
then when it does it stutters and shifts back in forth then shifts..
have any ideas what to do?? take it in or is this normal?

 

Take it in

 

lol ya man its covered...sounds like someone forgot to put that torque shifter, lag bolt in at the factory, LOL [][]