Well, I picked up the used injectors and things went down hill from there.
The guy had bought them for his 1999 straight from Ford and used them for about 26,000 miles. Just stock AD codes. I picked them up, picked up a new set of orings for everything and figured we had our problem solved for $600.
Now, I'll admit the next part is my fault for not looking carefully when I picked them up, but here we go . . .
As I started stripping o-rings off, I noticed that 3 of the injectors had a number written on them with a sharpie (1, 6, 8), probably to remember what cylinder they were in. Then I noticed that the other 5 didn't and they still had the oil deflectors bolted on where as the 3 with numbers didn't. Then I noticed that one of the injectors had been taken apart at some point and hadn't been put back together right. The top wasn't set all the way into the bottom, I could see the o-ring sticking up and there were vice marks on the bottom half. Also turns out that 2 of the injectors are AB codes. . .the rest are AD
So, I called the guy, tried to stay calm and said, "Either you are screwing me or the shop that did your work is screwing you. . ." He had no idea. As far as he knew, the shop gave him back his good injectors when he swapped them but it looks like they gave him some crap cores knowing he'd never know the difference. He's going to give our money back and deal with the injection shop. . . that's a crappy way for a shop to operate.
So, I think we are going to order a full set from Full Force and just be done with it. This truck will be sitting for a while now but dad's not stuck anymore so there isn't as much pressure now.