Thanks for the post Isotel. Your rig is killer. One of these years I am going to have to get my self together and make one of the big cruiser events and meet you and your rig in person.
For some reason I thought you were going to isolate the cage from the frame using something like this:
Bushed DOM Sleeve [XM1] - $17.75
So you just welded it all together, huh? No worries about pulling the tub off in the future?
I found some images on Polyperformance where they used their version of the bushings to isolate the cage from the frame on a couple of their projects. If I had to choose right now I'd just make everything a hard connection. Saves cost, simple, and seems stronger to me.
Maybe I am answering my own question?
Andy