Hi everyone, I just want to share my project with the rest of the org. I upgraded my stock 30 spline outer stub shafts to 35 spline. When I was searching I found mixed information until......I found WWW.UNLFAB.COM
This guy specializes in the Unit Bearing Dana 60. He sold me everything I needed to upgrade mine to 35 spline. He has the machined out unit bearing, Timken brand for $265!! A new stock Motorcraft cost me $300 and I work for the government. So if you're interested in upgrading your front stub shafts on your 99-04 Super Duty, go to his website or call him and he'll be glad to help you. If you already know this and want to bash me, Well........I don't really give a ****. Good day!