Originally Posted by MikeP
Do the 2006 and 2007 absolutely need Bulletproofing?
I thought I read on here somewhere Ford fixed most of the issues by then. I'm lookin for my first F250 and not sure if I should go 6.0 or 7.3
The 06 and the 07 had the least amount of problems of the 6.0 family tree. With that being said there are still some things that owners should do to prevent failures. Coolant filter is a must. It traps all the casting sand and rust that seems to plauge most 6.0s. This crap will get stuck in your oil cooler and lead to a plugged oil cooler which in turn leads to a ruptured EGR cooler or a blown headgasket. Thats the curse with the 6.0, most failures are cascading starting with the oil cooler. Fix the root of the problem and your motor "should" run you many miles trouble free with nothing more than good maintenance and an occasional look over. There are aftermarket companies that make upgraded oil coolers, Bullet Proof Diesel is one that has many followers. I see you live in Cali, you can't delete the EGR system without getting the Po Po's on your azz so BPD also makes and upgraded EGR cooler that is a lot better than the Ford unit that will not burst. The 7.3 although more reliable, really has nothing over the 6.0 in terms of power and torque. The 7.3 can takes lots of crap and abuse where the 6.0 requires more maintanence but can be just as reliable as soon as the kinks are worked out.
Also ARP head studs are a popular option as well as the OEM headbolts are weak. Stock trucks should be fine but if you max out your rig or add power they usually will fail at some point.