Right, but not a stock Ford truck. Same run of the mill, neutered engine. The SS was never nothing but a stock truck with stickers and "different" wheels. Even if the original Lightning was stock, Ford was smart enough to listen to its customers, GM, by in large has never done that. Apart from the fact that GM full size trucks has always wiped the floor with all others, they have never had an "SVT" line. Would not be fair to Ford and Dodge as they would have been put out of business.
The Lightning is an example, another would be the Dodge Power Wagon.
The C3500HD might be a near example of a special application vehicle, whereas it had a different frame and enhanced cooling systems, A stronger I beam front suspension setup, and minimum 4.56 gears. Serious work setup, some are still in heavy service today, despite being 25 years old.
Another example would be that GM never did 2 things with the 2500 Suburban, which they should have, in many other's opinions than my own:
1.) Duramax Suburban
2.) Allison option for the 8.1
Ford has the Raptor, Cobra, Turbo Thunderbird, SHO Taurus
Dodge has The Power Wagon, Demon, Hellcat, and so on.
Maybe GM did not see the need, as the ZO6 and ZR1 were killers, or perhaps the ZL1 or Z28 track pack, in limited runs of course.
I would say, that the Mustang for instance has always been much more car than the Camaro, in the defense of Ford.