Have him go drive a new one. I think he'll be impressed with the changes.
First one I drove was a 2001 V10, next was a 2003 7.3 and then a 2003 6.0. The 6.0 was with a dealer so I didn't get to really hammer the 6.0, but it rode and handled like a dream. The 2000 was OK and I'm sure the V10 was the biggest issues I had (really a dog) but it didn't ride that great either.
They are beast's but sweet beasts.

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2004 EDDIE BAUER EXCURSION, White, 4x4, 6.0 PSD
Eddie Bauer Premier, Trailer Tow Group, Cargo Group, DVD w/wireless, 3:73 LS, TC Skid Plate
Magnaflow Exhaust, Isspro gauges, V Code's, 285/75/16 Bridgestone Dueler Revo's