I swapped out a blown up Cummins in an 04 I used to have with jackstands and a engine hoist. Didn't lift the cab. But if you have a lift, might as well use it and make it easier on yourself.
Yes and no. In the newer trucks (2010+ I believe) there's a crossmember that makes it basically impossible to get the Cummins out without lifting the body 6-8", and by the time you get enough stuff loose to do that, another 0.5-1hr worth of work lets you lift the body completely up. I believe the Fords have their design tailored to getting the cab off a bit easier, so Ford just defaults to cab off for a lot more things. Because of this, they get the rep for "having to take the cab off for everything", but honestly it's probably not a bad thing for half of the stuff. Stupid when you have to change a power steering pump or something "simple", but better for more involved repairs. The Ram/Cummins definitely has a less crowded engine bay, but it's still pretty darn difficult to access things. I was able to get the head off without lifting the cab, but if I had done head studs instead of bolts, I would have had to raise the cab to get it back in.
I looked at the baby duramax/1500 a couple years back. It has some fuel system pump on the back of the engine that the cab has to come off to access, its under the cowl against the firewall. The sales rep told me the pump has a 80,000 mile life expectancy.
The owner of the shop that services company fleet will not do any work that requires removal of the cab. Ties up the lift too long waiting on parts and or disassembly/reassembly time, he can make more money with other work using the lift. Can't blame him for it.
Yes Fords are designed to have the cab removed. They do it well bulk harnesses and quick connect hoses. The 08 with the 6.4 was the first that "required " cab removal.
I’m not sure on mine as I’m 99.9% sure it was hurt when I bought it. PO didn’t disclose anything and I didn’t do the diligence I should have investigating prior to purchase. If I had to guess on mine it was from towing WAY too heavy and getting it hot. If I had the ability (and it existed in the computer capabilities) it would be interesting to go back and see if there were any peaks in recorded fluid temps.
Hard to say. Core failure was a hole in #1 piston due to heat. Not that the whole cylinder was running hot, but there was a hot spot which melted through, resulting in boom boom sauce in the lube cavity. This was on #1, however, 4 of the remaining 5 pistons had various levels of cracks or hot spots forming due to a similar heat situation, so I think it was bound to happen elsewhere if #1 didn’t go first. In my mind, that rules out a bad injector. Could be tune related, but the truck has 200k miles and has been running the same tune for at least 100k miles, so I’m reluctant to pin it on that. I was going up I-26 about a mile into the Saluda grade grossing about 25k pounds when it happened, and my foot was in the throttle pretty deep. But I’ve ran 321 up to Boone literally at full throttle and 25999.99 pounds multiple times, and I believe it’s steeper than Saluda. Plus I wasn’t a long way into the Saluda climb. Obviously it was heat and load related, but I’m not sure what was different. Maybe since Saluda wasn’t as steep, it was a gear higher, spinning at a lower RPM, relying more on boost and timing more so than a lower gear and higher RPM. Other than that, everything looks absolutely great, so unless you’re tuned and deleted and grossing 13 tons, I wouldn’t be too concerned.
Do you have an EGT gauge and were you watching it?
Can't change the past. In hindsight I certainly wish I had one obviously, but I didn't.Cant tell him nothin. I been sayin the same shit
Saluda is a sustained 6% over 4 miles.
I’d love to know where you got the grade ratings for 321 because I couldn’t find anything with a quick search, so I just did point to point on Google Maps.
Yeah well I bet their trucks (and equipment for that matter
) are still out on the roads getting the jobs done! 
What upgrades? Asking for me!
How big of a tune ?
