My radio body is very rusty and I have deemed it beyond saving. Having said that, the pivot mounts and the central tube look to be in OK condition. With that in mind I have put the box on its side and cut out the mounting system. This is going to be used as a mount for a flat bed.

With the mount bolted back onto the chassis I now have this.

I have no fabrication skills for making a flat bed so a friend, who does, is doing the work for me. The downside is he lives about 150 miles away. Time for a road trip.

My ML55 had no problems towing the 404.
Now the radio box is no longer going to be remounted I have made the decision to remove the rear chassis overhang. Start with removing the cross member.

Next the bracing

Then shorten the chassis rails

Next reattach the cross member


Finally reattach the rear pivot in its new position

The last few pictures show the shock mount lowering plates I talked about further up the thread.
The next stage is going to be to make the frame for the flat bed and attach it to the pivots. The flat bed is going to have a simple roll hoop at the front in case I have an opps moment while off roading.
He is also going to do the 8 speed transmission conversion for me and fit a crawler box that happened to come up on eBay a little while ago
