The short story is I am doing some welding for an ex-forum member. The entire floor from the firewall to the beaver panel has to be removed. The sills may will probably have to go as well. This will be a competition car (maybe not competitive though), so it will be a six point roll cage welded to a 3/4 chassis with an LX body attached. So structural integrity of the shell isn't important. Where I would like to go next is the removal of the factory rear suspension and adjacent floor area. Once removed, we won't have anywhere to bolt a diff to. The car needs to be a roller at minimum at all times and if possible, drive-able as well.
Option 1: Use the LX banjo diff with the factory rear arms and make some brackets to weld to something. Remember, the floor and sills won't be an attachment option.
Option 2: The owner has the complete rear suspension and diff from an HQ/WB commercial. As the mount points for the leaf springs will be parallel to each other, it may be a simpler option.
what is the distance from the outside of one spring to the outside of the other? If it's wider than the inside of the B pillar, it could be very awkward.
Option 3: Insert idea here.