3.23 vs. 3.55

Just a follow up question to what we've been working on. We decided to go with the 3.23 setup. After installing everything, we realized that the backing plates from the old rearend (4 holes) don't match up with the new axles. Does anyone know where to source appropriate plates?

Thanks as always.

EDIT - Bah, we ended up finding them in the back of the garage...disregard