I employed the GMC Sierra to tow my 19-foot Glastron boat, a burden of only 4000 pounds. That was a rather piddling load for this well muscled machine and it barely knew a load was in tow. What amazed me most is how quiet, smooth riding, and generally enjoyable this dual-rear-tired pickup has become. The Duramax turbo diesel is quiet, smoke free, and impressively strong especially from rest. It is supremely well matched to the Allison automatic transmission. Anyone who seriously needs this much capacity will be well served by this mega truck.
- Don Sherman, Technical Editor
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