I did not like how the DNA kit for SS Scourge has the ribcage filler pieces pinned into a long metal slider and there is no clearance for the chest piece to transform without bending the chest or removing it. I cut off the ribcage pieces to make a different way it can function. Originally I tried a double ball joint but no clearance or space, then I settled for partsforming. I dremeled and made a cavity for these ball joints I got from amazon, similar to lego ones. I drilled a small hole for a white 2.5mm round peg to go in that will connect the piece to the body for transformation. Was considering drilling a hole into the robot body chest sides but realized there's already a hole from where the wheels are pinned in. There is enough empty space for me to widen the hole to 2.5mm without affecting the pinned wheels. I test fitted how the ribcage pieces would be positioned against the body before I glued the ball joint onto the part, for clearance. Have not transformed him yet so havent made a way to integrate into truck mode yet