Bucket seat brace removal?

[CG]

My 71 C30 originally came with bucket seats because it had a pass through in its former life as a motor home. Pass through is now patched.

I have a set of stock buckets I may use someday so I thought I should pull the bucket seat brace out of the C30. Is this something I can do with the cab still on the truck?

Unlike the rest of my projects I would really like to keep the C30 running and driving pretty much all the time. No body off stuff.