best tranny
You can get wider ratios, and you have the OD. So, you can fool around with the diff ratio and get a combination that uses the relatively narrow power band of the 300 more better than a 3 speed.
Here are some AOD sites, followed by a site with a rpm/mph calculator where you can plug in your ratios and tire sizes. Good luck.
http://www.transmissioncenter.net/AOD.htm
http://ckperformance.com/ford_aod.html
http://www.becontrols.com/products/aodcat.htm
http://www.tciauto.com/Products/Ford/ford_aod.asp
http://www.novak-adapt.com/knowledge/gearing.htm







