Million mile Truck what needs Repaired ?

I run OTR in a 1.5 million mile pre-egr 12.7 truck -- its been down less in the last 60,000 miles than the 4 newish trucks I drove as a company driver (ISX, DD15, Acert, & Maxxforce). That said, the maintenance log shows some occassional expensive work: an inframe at ~750k, hood/radiator/charge cooler at 900k (complimemts of SWIFT), a differential at 1.2, turbo at 1.3, & a fifth wheel at 1.4. Original rockwell transmission is just barely starting to whine in 9th, & it could need an inframe in the next year or three, but I trust it to go anywhere...

 

Check engine and transmission and cab mounts too. I've seen trucks with the rubber completely gone.

 

Not sure I totally agree with this statement. The truck in my avatar I paid 13k for knowing I was going to take it home and do some work on it. By the time I put it on the road I had less than 20k invested and in less than 6 months it paid for itself (in profit not revenue) and the trailer I bought for it to pull. Do I think its what everyone should do? Probably not but it worked for me and a few others that I know. Thorough inspection and a good understanding of cost involved fixing all the things you find wrong.

 

Man, I can't believe some of these were not mentioned.

King Pins, Shocks, Air Bags, Ujoints, Carrier bearings, AC does it work? Wheel Seals, Any suspension bushings. Leaks around the windshield. Check airlines and wiring for any chaffing.

I found a truck the other day that I would have loved to purchase but when I saw photos of wires hanging from under the dash for something that the owner had wired in, I said NO WAY! When someone starts to tap into wiring it makes me nervous, especially on these trucks.

 

Open the Hood, unscrew the Hood ornament for the next truck.

 

If the truck has been maintained, then nothing needs repaired just because of a million miles.
grease, fluid changes, keeping an eye on coolant SCA can make a million mile truck need far fewer repairs than a 500,000 mile truck with poor maintance.

 

if a million mile 12.7 has no blowby it probably wasn't running.

The rear wheel bearings should be changed before you have a failure and need to call the axle surgeon