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LEGO MOC Technic 40th Anniversary Model With Differential by kennywest | Rebrickable - Build with LEGO
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Amazon.com: LEGO Technic Large Gear 40 Tooth Mindstorms NXT Light Grey Part 3649 Piece (Quantity 25 pcs) : Toys & Games
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LEGO PART 32523pr0001 Technic Beam 1 x 3 Thick with Black '40 1977 - 2017' and 24 Tooth Gear Print | Rebrickable - Build with LEGO
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