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2006 Chevrolet Silverado 2500 HD Road Test

The hiss generated by the high-pressure, variable geometry turbocharger force-feeding GM's massive 6.6 litre (403 cu in) Duramax diesel V8 gave my prodigious Silverado 2500HD 4X4 tester the acoustics to match its stunning torque rating of 650 pound-feet. Accompanying the mountain of torque in the new-for-2006 larger Duramax is 360 horsepower. ThatâE(tm)s the kind of brawn needed to pull 5th wheel homes and horse trailers through mountain passes without holding-up traffic like a cork in a bottle. With so much pulling power at one end and dead weight at the other, an automatic transmission was often the weak link in an otherwise very strong chain. For 2006, GM has hardened the susceptible weak link by bolting a 6-speed Allison-manufactured autobox to the rear of its "bruiser", Vortec 8100 (gas) and Duramax 6600 (diesel) powerplants.

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2006 Chevrolet Silverado 2500 HD Road Test

The hiss generated by the high-pressure, variable geometry turbocharger force-feeding GM's massive 6.6 litre (403 cu in) Duramax diesel V8 gave my prodigious Silverado 2500HD 4X4 tester the acoustics to match its stunning torque rating of 650 pound-feet. Accompanying the mountain of torque in the new-for-2006 larger Duramax is 360 horsepower. ThatâE(tm)s the kind of brawn needed to pull 5th wheel homes and horse trailers through mountain passes without holding-up traffic like a cork in a bottle. With so much pulling power at one end and dead weight at the other, an automatic transmission was often the weak link in an otherwise very strong chain. For 2006, GM has hardened the susceptible weak link by bolting a 6-speed Allison-manufactured autobox to the rear of its "bruiser", Vortec 8100 (gas) and Duramax 6600 (diesel) powerplants.