Rack 'n Ruin!

[snaketales]

Thanks
I hadn't thought that far. In theory they could be pulled apart, transformed and stuck back together - but they'd each have half a turret and it would look odd.
Might give it a go when I'm bored

[DELTAprime]

I've never really understood G1 Rack'n'Ruin. They are two distinct robots connected at the shoulder. Just get out an Energon Axe, cut them apart at the shoulder and give them a new arm.

At least with the more recent version of Rack'n'Ruin they are more like a single robot with two heads. Something that can't be easily undone.