Nath,
MC's on TA22's and RA23/28 and beyond have been well covered on this forum, I will be one of the first to say SEARCH.....
Rebuild/rekit the TA22 MC is the easiest fix.
TA22 M/C's are two bolt, not compatible with the RA23 and later four bolt M/C's, so you can't swap them over.
To upgrade the 11/16 2 bolt TA22 MC buy a 13/16 T18 MC from PBR and bolt that on.
I have said too much aleady.
Mitch.