4l60e problems
 

I have a truck with the 4l60e that the linkage cable is out of adjustment not allowing the truck to go into park. Would this throw off my shift points (truck won't go into second unless i let off the gas after 1500 rpm) and also I have no overdrive. This is a tranny that was swapped in and was said to be good before I traded for the truck about a month ago.