im looking to get another diesel truck and was just wondering how many miles are ok to buy a truck at with out haveing to sink every thing i have into after buying it. i dont know if their are any differences in motors but i am trying to look at dodge 12 or 24v, ford 7.3 or chevy 6.6. if any one has any advice it would be a great help.

 

Cummins under 400K would be a good bet.