Transmission is the last of the problem. This truck has been a problem since I bought it 2 yrs ago. It blew 3 injectors a month after I got it due to the lining in the tank braking down and clogging the injectors. Had to replace the tank.Then a series of oil leaks happened, 6 in all. Ranging from crank shaft seals to oil pressure pump cover seals. cam shaft seals. During this time also had problems with the turbo. It had to be tore down and cleaned out. The turbo would whistle loudly under load and one time lost boost and engine stalled. I also get a smell of antifreeze when it would pull under load. Right now its in the shop waiting for the tranny that it originally went in for an oil leak. Its been there for 3 weeks. In 2yrs it1s been in the shop 10 times in the last 2 yrs 7 times in the last 6 months. it only has 57000 miles on it As soon as I get this piece of crap back I`m selling it for another truck by a different maker