2005 6.0L Diesel Options

[Cali Native]

I second the power brake booster my 2008 lost it at about 45,000 I'd change it now unless you want a white knuckle low speed ride to a repair shop.
Also the EGR valve I just did mine at 50,000 as a preventive measure .
I've always drove mine hard but religiously maintain oil at 5000 miles etc and the EGR looked pretty good to the mechanic who said he's seen much worse but it looked pretty carboned up to me and I'm glad I bought that peace of mind I think it was about $600 in Los Angeles.