12.7 Detroit vs isx15 please help

That is the one I would go with. You are going to be able to do more work yourself and parts are much cheaper. Any ole wrench can probably fix it on his lunch break.

 

This speaks volumes. One owner with all the records. I would still dyno test it.
You mentioned a long wheel base as a negative. Is the seller a flatbed driver? A long wheel base comes in handy for front clearance on long loads of pipe. What are you intending to do with the truck? If pulling a dry van or reefer your fuel economy might suffer because of a bigger gap between the tractor and trailer. If pulling anything else that longer wheel base shouldn't scare you at all.

 

Sounds like you've already made up your mind. Just do your due dilligence before you sign on the dotted line.

 

Well now that you gave us more info I'm in the 1 million mile truck camp now.

 

We hat other parts are you worried about?

Kingpins?
Rears?
Trans?
Brakes?

Those are about the only wear parts. Not that expensive and can be quickly repaired with pullouts if you have to. Well except the kingpins and brakes.

My truck is a 1993 by the way.

 

About the only other things I'd add to that list of things that could put an older truck out of action would be hoses and wiring. As long as its kept up on it shouldn't be an issue.

 

I'd grab the 2001 in a heart beat. For the age and miles I wouldn't pay much more than $30k if it's really nice. $10k if it needs lots of attention.
The good thing is, what ever you pay, it can be fixed and fixed right.
The 2010 can be fixed, and fixed, and fixed, etc etc etc and never be right.

 

Mine is a 99. Over a million miles
Yes I have replaced things that have wore out, but that's any piece of equipment. Easy to work on and a good steady trk...