I couldn't install a belt driven compressor since i already have dual alts. But I got an Extreme Air Severe Duty .. rated 150 psi, 100% duty cycle and flows 4 cfm .. that with a 9 gallon tank should do nicely ! here are the specs on it ...

# Tech Specs: Continuous duty cycle compressor
# 3/4 horsepower fan cooled motor
# 30-amp draw at 35psi
# 40-amp draw at 150psi
# 4 cfm flow rate
# 150 psi max working pressure
# High flow air filter
# Can be mounted upside down
# 14" long X 6" wide X 9" tall
# Weighs only 17lbs

 

I also have an ExtremeAire on my truck. It is the new Magnum that they came out with. 1-1/2 h.p 150 psi. 100% duty cycle compressor,this thing rocks. It will run air tools and fill and fill even the largest truck tires. They also sell engine mounted ones and I heard they have the brackets for the big 3 diesels. Here the link to their website. http://www.extremeoutback.com