Well, I dropped by the dealer today since I was in the area and inquired about TSB 03-26-2 and the new recommended grease and boot. Surprisingly, they had the parts in stock. The boot looks similar to the old boot, although until the old one is off for a side-by-side comparison, it'll be hard to tell for sure. I do notice 4 grooves that run lengthwise along the interior of the boot and I can't recall if those same grooves are on the old boot.

The grease is indeed something new and different. It's called "Molykote EM-D110 Yoke Spline Grease" and it comes in a toothpaste-sized tube. I posted a question about this Molykote grease in the FTE Oil & Lube Forum:

https://www.ford-trucks.com/forums/s...d.php?t=266696

In addition, since the aforementioned TSB contains a step-by-step process with some diagrams, I have added it to the Driveshaft Slipyoke Lube writeup that I previously put together:

http://rockledge.home.comcast.net/Ra..._Yoke_Lube.pdf