2010 JK Unlimited 4x4 Sport . w/3.8 - 373 gears and Automatic Transmission. Finally got the tires and wheels installed as well as the 2 in puck lift and jeep looks GREAT !!! The Jeep came standard with the 225/75 R16 tires and I replaced then withe 285/70 R17 - Basically going from a 29in set up to a 32in set up. So went up 3 inches with the tires and 2 with the puck lift. I was worried I would experience a loss of power as I really do not want to re-gear. Only thing I have noticed is when I get the Jeep on the highway, it likes to hunt gears when in Overdrive. Basically, at 60-70 mph, it is trying to cruze at around 1700 RPM and with the slightest incline, it will downshift. I have heard of people buying a chip or having 4x4 shop re-program transmission shift positions to improve this condition. Just wanting to get some opinions on this. My speedo is a little off, but I am not as much worried about that as I am the transmission. It is not awful, but it seems to be difficult for it to stay in Overdrive. If this is something that is recommended, what are good brands, is this something I can do myself, does this fix this condition? What should I expect to spend. THX