Rear Inner Hinge Pin to Shock Shafts

[markwilliamson2001]

I have the atomic carbon rear brace, but have also changed to flipped rear blocks. While I have not had the the rear brace come off yet, I think it could be made a little more secure!! Someone suggested using Rear shock shafts with a e clip on the front of the pivot block and a nut on the rear, outside the brace. Does anyone know which shock shafts are required? 1.0" or 1.2"?

Thanks
Mark