BobH,
I would suggest searching in the Attachments forum for a thread named "Installing a Bradco Backhoe". It details my experience trying to install a 408 on my TC29D. The high points are: the subframe must be welded to the tractor, the backhoe affects your warranty (if you have one), and your ground clearance may be limited. I will say this, it's an excellent quality heavy duty backhoe.