The top nut was the only one I got off. That's what I used the stubby line wrench for.
I could not clear out the DPFE lines either. There is apparently an orifice in the lines, which does not help. I soaked them for days with GM top engine cleaner (which is supposed to be the best), then blew 100+ psi of air pressure down the lines. All that did was swell up the rubber hose until it blew off.
The EGR valve itself will be totally clogged, FYI. But unless you can get a vintage 1995 EGR from a Ford dealer, your better off cleaning the old one. The replacement one from Ford, plus all aftermarket ones will have the vacuum port in the center, making it impossible to connect to with the plastic line.
97 T-Bird LX 4.6 - 66k miles
94 Supra TT Auto - street/strip car
04 Crown Vic Police Interceptor - Brenda's car
95 T-Bird LX 4.6 - fully optioned, owned 15 years
96 Cougar XR-7 4.6- Brenda's car, owned 11 years
88 T-Bird 3.8 - first T-Bird, owned 5 years