On my 1997  8200 likes to buck when shifting into 13th, that is if I am below 1500 rpm or so.   You can get them to shift fairly smoothly if you have the right rpm.

Yes, had to do the ex. man. bolts, front seals on a mfw, my heater fan is squealing now and needs some attention. All in all very satisfied. about 5500 hrs.

I did not notice how much better the cab is until I drove my neighbors 4640 this fall.   A 4640 is what I use to run and thought that was great.  lol.