There is a thread over on Teamshelby.com that has the Timken part numbers. From what I heard, they weren't available, though at least 2 members there had been able to get one (I think AFTER bed things happen).
The original pinion bearing was actually easy to save in pristine condition (Well at least as far as I know after only 30 miles!)
Harbor Freight sells a tool kit for $50 that has the bearing splitter you'll need to remove it (Thanks to SVTBird I think for that GREAT tip!). We needed some longer threaded rods to get it to work though, but happend to have some on hand.
I was able to reuse my bearing, the installer had a tool that removed it without a problem, he borrowed the tool from work since his brother is a mechanic at a local dealership There is another bearing you can use without the race if I remember reading threads about this on SU. Allot of guys have done the mod and one thread had a big right up about it and what part numbers to use if you could not get the ones that came in our car. Once thing the installer said after doing mine was it was different size than others he has done in older stangs but there was nothing else special about it like better built or made from space age metal I think Fred needs to pay a little visit to the parts department at work :lol: