Page "Wacky Races" Paragraph 7
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Rock and Gravel Slag ( voiced by Daws Butler and Don Messick ) are Cavemen driving a wheeled boulder.
The Slag Brothers sometimes reconstruct their car from scratch just by using their clubs on any large boulder that is available.
If the whole Wacky Races series had been scored according to the Grand Prix point scoring of the period the Slag Brothers would have been the champions.
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