TU56 Rack Mounting question

Ashley wrote: No rails at all, they just bolt directly to the front rack mounting holes with four screws and clip nuts (keeper nuts as DEC calls them) on each side. The only access is the flip down front panel. The TU56 Maintenance manual describes a support plate and two spacers that bolt between the front rack uprights at the bottom of where you are going to mount the TU56, presumably to keep the uprights from spreading apart and to give you something to rest the TU56 on while you bolt it in. I don't have any of these for either of my TU56s. The manual also recommends removing the whole front transport panel and motors, mounting the main housing in the rack, and then reinstalling the front panel. That's the way I did it since the whole thing is 80 lbs. and I didn't have three people to help me nor a nice equipment lift like Guy..... Jon