Conversion Month continues on the podcast with a conversation with Sean Patterson of Diesel Conversion Specialists. The company offers the harnesses and other components to install Cummins mechanical and common rail diesel engines into Fords and GM trucks. This is an interesting segment of the aftermarket because it continues to grow as more and more owners convert their trucks into dependable, mileage friendly and reliable vehicles. So what's the most popular project for Diesel Conversion Specialists? Paul and Chris find out.    This week's sponsors: Wherli Custom Fabrication WCFAB.com Exergy http://www.exergyperformance.com/dealers.html