How to destroy a NV4500 (or so I thought)

[pwerwagn]

My friend bought a 2000 3500 4x4 black sport dually a while back. It is a 5-speed. He pulls horse trailers all the time with it (his parents own a trailer company here). He put the superchips programmer on it, 4" exhaust, and an air filter. One night I saw him and told him I wanted to ride in his truck with the chip. I asked him if the dually would smoke the tires (235-85-16's with 3.55's). he said "yeah, sometimes." Heres how:
Pull up to the light, put your very tip toes on the clutch pedal. Push the gas all the way to the floor. It doesnt matter how long that is. when the light goes green, simply slide your foot off the pedal! (watch out though, if the pedal gets your shin, I'd imagine it would hurt! ).
You no longer need the clutch, just pull it straight into second. then bang it into third, clutchless again. (A not so wise friend once told me "if you cant find it, grind it. They'll make a new gear next year").
We did this over and over. probably 6 or 7 lights in a row. He said he's gone through 3 or 4 clutches in like 20K miles. The stupid truck has like 80K on it now, and the trans is still good. I assume he uses stock clutches (he didnt know ).

I guess the NV4500 is a pretty good trans after all.

--Jeff