Dodge Repair: 1999 Voyager Van shifting problems, rpms, voyager

Question
We just had the van transmission overhauled and now it is shifting at high RPMs out of 2nd and 3rd gear, and it's not smooth.  The Aamco shop said it's fine, we disagree.  What could be causing this?  Where can we locate the factory-specified RPMs where shifting is optimal on a 3.3 flex-fuel VIN#R model?  Thank you!

Answer
there is no such thing as this <factory-specified RPMs where shifting is optimal on a 3.3 flex-fuel VIN#R model>  its computer controlled shifting and it changed based off the way U drive.
Now to your issue  U may only need what is called a quick learn  and the tranny shop should have the scanner to do this  if not a dealer will be able to do it. If it still happens  then U get what U get  they use non factory parts and the quality will not be the same.