NADM is offering a wide range of classes in Diesel Sled Pulling, with a rule set permitting every level of diesel truck to compete from stock street trucks to full blown tube-frame Modified pulling trucks. All classes 8000 pound maximum unless otherwise noted. See class overviews below:

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, 1" minimum compression travel on rear suspension, water injection prohibited, 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.

Super Street Diesel: 3.2-inch maximum inducer bore in twin turbo configuration, unlimited inducer bore single chargers permitted, open driveline permitted, DOT tires required.

Modified Diesel: Unlimited turbocharger, 2 stage maximum, open driveline, open tire, 7600 pound maximum weight.

See NADM rulebook for specific class guidelines.