The best:Cummins 5.9 and 25 mpg. 6sp G56 transmission. 216k repairs limited to one injector line and a water pump. No blowby, no oil consumption.
The worst:Interior seats. Like riding on bricks. Later year's interior supposedly bolts in. The truck will literally fall apart around the motor and transmission.
The best:Great power, runs and drives great once the bugs are worked out.
The worst:Electrical. all of it. was in and out for electrical issues the whole 1st year. Also the service was awful when i would bring it in at Bergstroms of kaukauna and van horn plymouth. Wouldn't step foot in either place again in my life. also had a bad Transmission that Grenaded its self around 38k miles. truck was basically a street queen that drove me back and forth to work and pulled a boat 5 miles. also told Van Horn it was acting funny and had some noise shifting from Park, Fwd & Rev several months before that and couldn't find anything. even when i recreated it when i picked it up... they found it the next time though. in pieces when i tried to leave work. oh hey Van Horn also thanks for ignoring your phones the last 20 min you were open and after i talked to you once informing yall i was waiting for a wrecker and yall were 6 miles away so it was coming there and a loaner would be great since i lived the opposite direction and hour away. and thank you again for not having a loaner available the whole time it was being fixed under warranty. its ok though i bought a spare vehicle to drive to work for yalls convivence of not having to worrying about that. it'll also come in handy when i bring it for the rear main seal leak that started not long after the Trans Job. Also Van Horn Gm Roy i think. you can shove that joke of an extended warranty you offered to sell me that was basically the manufactures warranty for thousands after all that... shove it right up your you know what. along with the free oil changes for life when i bought the truck. id rather do it myself or pay anyone else to do it. Other than that great truck when its not in the shop for something dumb i told them about 2-3 times with not fixing it nothings wrong then having to after i'm on the side of the road. would buy again, but definitely not from those dealerships.
The best:Dash layout, interior comfort, pulling power.
The worst:Since I've had it at 12K miles, it's been in the shop 4 times for failed emission problems. The DEF and emissions need to be eliminated altogether.
The best:Truck drives and runs great, has really good power.
The worst:The emissions system is horrible, need to be able to remove the diesel restrictions. Not liking the gremlins in the electrical system right now as well.