8500# weight limit.
Work Stock: Stock appearing turbochargers, 1" minimum compression travel on rear suspension, water injection prohibited,, hanging weights prohibited.
2.6 Street Diesel: Single turbo, 2.6 inch maximum inducer bore, turbocharger bushings prohibited, water injection prohibited, bolt in, removable solid rear suspension bars permitted, receiver style hitch required, hanging weights permitted.
2.8 Street Diesel: Single turbo, 2.8 inch maximum inducer bore, turbocharger bushings permitted, water injection prohibited, bolt in, removable solid rear suspension bars permitted, receiver style hitch required, drive shaft u-joint shields required, hanging weights permitted.
True workstock: Over 8500# Twins permitted (no larger than 3.0" inducer on the big turbo, Water injection prohibited, hanging weights prohibited.
All rules reflect NADM.