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You'll probably need a 75 or 78 series Optima w/ a height adj. bracket. If your not running 12v. items w/ the truck off for long periods... the Red top should be more than sufficient.
The red tops are for cars and yellow tops are for trucks. Blue are deep cycle marine.
Im sorry but this is not entirely correct.
The yellow top is a deep cycle battery, made to be drained completely and then fully charged again.
The red top is a starting battery, meaning its made to be used in ANY vehicle that uses an alternator to constantly keep it charged.
ALWAYS ALWAYS ALWAYS use a red top optima as a primary battery for any vehicle application. It will come with brackets that will allow it to be used with the factory hold down bracket.