Getting Ready for 741 Sure Grip Rebuild. Quick ?

I'm getting ready for my first differential rebuild on my brother's 67 fish. I bought parts from Doctor Diff. Everything is stripped down and I have my pinion set-up bearing.
When I tore everything down I noticed that there was only one carrier adjuster locking tab on the left side. I thought that there would also be a locking tab on the right side. If so, where can I locate another?
Should have one on each cap as seen in picture
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