jdawg
5,000+ posts
CarAudio.com Veteran
Get a Deka Intimadator. You can get them from Remybattery or sometimes find them local and save on shipping, also if you have a Car Quest nearby they carry a NGT Extreme which is a relabled Deka Int. I got my Deka Int local for $120. I drove my car for a week and a half with a bad alternator (1.8v output) before the voltage started to drop to a little below 11v. 9A78DT should fit your truck. There are better batteries than the Optimas for the money IMO.