Amazon.com: for Traxxas X Maxx 4X4 Upgrade Parts Aluminum Servo Mount + Stainless Steel Tie Rod + 25T Aluminum Servo Horn (for X Maxx 6S / 8S) - 16Pc Set Blue : Toys & Games
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Amazon.com: for Traxxas X Maxx 4X4 Upgrade Parts Aluminum Gear Adapter + Steel Spur Gear 54T + Motor Gear 16T (for X Maxx 6S Only) - 1 Set Gray Silver : Toys & Games
Amazon.com: GPM Harden Steel #45 Front Or Rear CVD Drive Shaft with Aluminum Hex for Traxxas X Maxx 6S - 1Pr Set Orange : Toys & Games
Amazon.com: for Traxxas X Maxx 4X4 Upgrade Parts Aluminum Gear Adapter + Steel Spur Gear 53T + Motor Gear 18T (for X Maxx 6S Only) - 1 Set Gray Silver : Toys & Games