Finding what the Isuzu i-280 and i-350 do best is as easy as opening up the owner's manual and searching for the warranty information. In GM guise, these trucks trail the pack with outgunned engines, relatively weak towing and payload ratings, and the General's 3-year/36,000-mile powertrain warranty. However, Isuzu will offer the same vehicle to the buying public with an impressive 7-year/75,000-mile power warranty backed up by 7 years and 75,000-miles of roadside assistance. So, with GM and Isuzu it's an apple-to-apple comparison, but Isuzu's fruit shines up better and has fewer bruises.