this is the tilton t/o bearing.
It is actually made for chivvy so i had to enlargen the id of the four legs (useing the 4,8" bearing retainer)
Then drilled four holes in the bell and shim out the bearing to where it needs to be.
I should also mention that i use a lakewood bellhousing so i dont know if this would work with a stock bell.

There are t/o bearings out there that fit but i liked the idea of the bearing being bolted to the bell.