The cargo container on the back attaches quite tightly to the jumper plates, but when you detach it the jumper plates should let go easily. I added the half-pins and 3-stud liftarms to the side because Studio wouldn't let me attach them to the middle axles. The pins go on studs-in, and then you add the liftarms. There is a small 2x2 compartment in the back that you can access by pressing on the inside end of the red 2x3 tile.This is a Stud.io file, not an LDD file, so you have to use the Stud.io app. You can download it for windows here:
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