what do you guys think about this truck i found??????????

i found 2007 columbia with detroit series 60 , 14 ltr .10 speed , with apu and 330,000 miles on the clock. owned by one company and driven by 1 driver .
they have all maintenance records and reports. The only thing that has been changed is turbo v-pad and thats it.
they are asking $47k
i was thinking about offering 39 and see what happends ..
what do you guys think??? the mileage is pretty low ...do detroits start breaking down around this milege or what???
I also found one 2005 with 300k miles for about the same $ . Is there much difference between 2005 AND 2007??
what is your guys's experience with columbias and detroits?
is 10 speed going to kill my mpg compare to 13 speed? what can I expect for mpg? around 6 or maybe 7???
what would you guys do????

any of your advice would help. Thank you !!!

more info: its my first truck purchase , pulling dry van all over the place ...

 

BigJls1 ,
hahah , i have been looking like crazy !!
Thanks man! I am going in the morning to test drive ..run dyno and make offer , think I will offer 38k ..since i just found truck in houston 05 with 240k miles same motor , records , dyno , the whole package except APU ......for $37,000.
yea , I dont care for california .

 

I want to hear about that mpg increase THAT would be awesome ..

. Is it something like tuner that makes egr thinks its on higher elevation?

 

thanks man..helpful post

 

very helpful post Dewey120,

I dont know what year is the engine yet , but i will find out tomorrow .

thanks man