Another question for truckers about a diesel..

we have a fleet of 8.3/5.9 cummins in our fl 60/80 stay with the 97 and down if you are on a tight budget they are not computer controlled and much cheaper to fix ,we are having lotts of problems with the electronic wiring falling apart to all the controls, the engines are great and will run forever with the biggest problem from wore out head gaskets our fleet has about 80 of these.