Hi, your request caught my eye since i own a 2003 Sierra 2500HD 8.1 Allison as a racecar tow vehicle and to go fishing. Been going for several years to Northern Cali tracks such as Sonoma, Laguna Seca and Thunderhill.
The truck is not driven a lot. Been babied. Never let me down. I love it and have no plans on selling. Happy to help you in your search. Using search tempest I came across this recent ad for a 2002 Sierra 2500HD 6 speed. Best of luck
https://www.yellowstonechevroletbuic...66042893#close