Sixbuilder
The Autobots need their own construction crew.
http://tfwiki.net/wiki/Sixbuilder
Bring Sixbuilder into the America original G1, with a new name, and new names for all the robots who comprise Sixbuilder.
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I doubt that there'd be a lot of people who would want it, but Hasbro could repaint the Titan-Class Devastator as Sixbuilder.
They could use the Build Team names for the characters:
Scoop(Scrapper)
Heavy Load(Long Haul)
Quickmix(Mixmaster)
Wedge(Bonecrusher)
Hightower(Hook)
Longrack(Scavenger)
I'm not sold on Longrack, it's just a name that has been used before. They could call him Stripmine or something else, or even keep the name Digger which is OK.