New diesel owner
 

I'm the proud new owner of a 2006 F-350 cc dually. I found this truck on cl and it was priced right so I made an offer for it and bought it. I was super happy with it but knew it needed some work on it plus it has a utility bed and I wanted a factory bed or maybe a flat bed.
Truck has 183,000 miles on it so I'm sure it had the update or a fix on/in the engine or it would have failed by now. I've been reading up on the fixes and improvements that can be done on the 6.0 and the output it can produce and I am excited.

Congrats on your new truck. Be prepared for stuff to start going wrong shortly unless the common issues have already been addressed. I'd start saving up for a bypass oil filter kit and coolant filter kit if I were to do it all over again. I'd also purchase a decent scanner as well, scan gage 2 or auto ingenuity, you'll save yourself alot of headache when things start going wrong and you'll be able to keep an eye on things before they do go wrong. They're great trucks when they do work tho, lots of power, they look great and Imo, they're much better quality compared to the GM and dodge trucks of the same years.

Congrats and welcome to the addiction. Having a lot of miles on the clock isn't a tell tale sign that the upgrades have been done, some 6.0s got lucky and end up really putting down some distance before an issue rears it's ugly head. Take a look at the head fasteners (the driver side is the easiest to see), if it has a stud and a nut then you can breathe a little easier, if it still has a bolt then start budgeting to do the top end.

As bksrt8 mentioned, FILTER FILTER FILTER!!! Keep those fluids and clean as you possibly can, a coolant filter is an EXCELLENT insurance policy to help prevent against EGR/oil cooler blockages, and at less than $150 it can't be beat. Also, get yourself some monitoring equipment, I like to fantasize that I'm a fighter pilot so I have gauges everywhere but an all in one unit will do the same job, sometimes better. Big things to watch are fuel pressure (below 45psi will kill injectors fast), EGTs (1500°F burns exhaust valves and cooks turbos) and the coolant and oil temperatures (more than a 15°F delta means that your oil cooler is clogged up)

I was thinking(which never ends well)
 

Looking into getting a low mileage 05 to 07 F250/6.0 ps then having the bulletproof mods done for piece of mind. What is the forums take on this?

We're all for more guys joining the pack, shop around for who you have bulletproof it though, it's about $2500 in parts and fluids alone but many shops are charging upwards of $5k to do it which is total horse$#!+, stealerships want $7k. It's not the end of the world to do it yourself, just time consuming. Don't EVER use Black Onyx gaskets though, use factory Ford head gaskets, otherwise you'll get to apply the experience that you learned the first time to do it again...like me :argh::argh: