The 42rle transmission on my 2007 Wrangler Sahara makes a odd noise when shifting from park to reverse or reverse to drive and vice versa. It does not make the sound when shifting into park. The noise could kind of be described as a buzz. It is pretty loud though with the window open you can hear it clearly. Is this normal? Also when I check the transmission fluid level it is much much higher on the side with no markings. Which side do I pick? Thanks for the help.