8 3/4 rear end

Because the yoke bolts are grade 8, and don't bottom out,, they just snap,, they are generally pretty easy to back out with a small cape chisel,, there's often a little burr left sticking up at the break,, kinda tap it backwards till you can get pliers on it,,

If you got a dremel,, or similar grinder,, grind a slot, and use a small screwdriver to remove.. clean up the mating surface..

hope it helps