[Maxo]

I just finished my 4.44 swap and everything went pretty smoothly. However, I now have a very loud metallic clunk when shifting into "R". It sounds just like the bad U-joint did on my old Plymouth. I can't tell if the sound is coming from the rear diff but it's definitely in that vicinity.
So my question is; could I have messed up the gear change somehow that would result in this? Could my rear axles have been wrecked somehow, they did dangle for a bit...
I followed some instructions I found on here using the svx housing, replacing the pinion and ring gear.

Any ideas?