'69 Barracuda T56 swap, floor, cross member

If anyone needs to get the dowels out again, drill and tap 1/4-20 and then run a full thread bolt in with a nut on it, put a deep socket over it and tighten the nut and it'll pull it right out.
I did that on my first attempt. 1/4 bolt snapped off flush with the dowel pin. So maybe I should have used a Grade 8 threaded bolt?