1966 Ford F100

Painless Performance Alternator - Painless PowerStar

The PowerStar alternator features a unique adjustable voltage regulator with a range of 13.5-18.5 volts. It is adjusted by turning this little Phillips head screw while observing a voltage meter (on board or handheld). View Related Article

GMC Yukon XL Research

Finding a fuel efficient automobile today is easier than ever. Check out the GMC Yukon XL buyer's guide providing information on car specs, reviews and fuel economy. The 2009 Yukon XL is offered with your choice of V8 engine, and it has a comparable warranty. Other similar vehicles are the Ford F150 and the Ford Expedition.