I have seen a few of these laying around my bolt buckets. I can look for one this weekend if you need it. Let me know. I'm talking about the little metal cup that holds the nose of the starter.

If you do run the scatter shield, make sure you not only check the runout on the alignment of the input opening in relation to the crankshaft centerline, but also that the face of the transmission mounting surface is parallel to the back of the block. I have to use both the offset dowels AND small thin washers to line my scatter shield up square too and centered too the crank.

Many people only check the opening runout and skip the later. It is just as important that it be correct.