Throwout bearing for TKO600????

[70gotboost]

Here's my first hurdle in switching my factory automatic '70 Camaro to a 5 speed. I have the Tremec TKO600 5 speed, part #5008 (Ford), using the Lakewood #15030 bellhousing (converts the Ford TKO600 to Chevy block). I am also going with mechanical linkage. I purchased the Centerforce #N1716 bearing, not thinking the trans is the Ford version, and it doesn't fit.

Now to the question...

What throwout bearing do I use?? I've searched the net with no results...