a grinding noise on driver side

Thought my CV actual still going out I had a rubbing grinding sound I changed my CV axles on both sides and it helped a little bit but I still have a grinding sound on driver side where the CV axle goes into transmission can't tell what it is or what to do about it I can put it in park and neutral and it goes away but as soon as I put it in reverse or drive it starts that sound again. When I'm driving I can turn all the way to the right and then don't make the grinding noise until I go back straight or turn to the left when sitting still at a light or stop sign or even in a parking lot as long as I have it and park or neutral it won't do it what is it that the grinding noise could be sounds like coming from a transmission