I just noticed that it started shifting very hard when cold while going into Drive, reverse, 1 to 2nd, 2nd to 3rd. After it warms up it seems to go back to normal and i have read that this is normal when cold, BUT my trans never did this until just now. I have had my 1999 V6 Auto 4 runner since new and it now has 126K miles on it. I have also noticed about 2 years ago that only 1st gear started making a whining noise while accelerating. I have changed the tranny fluid and filter several times over the years. Any thoughts would be appreciated!