It's a direct-fit hop-up designed specifically for the Yeti Score platform

Traxxas U-Joints Drive Shaft Revo

as opposed to a top mount

41807004 Seal Spring 30 Wankel

giving you the mounting hardware needed to keep your body shell securely attached and properly supported

Robinson Racing 1564 Gen3 Slipper Unit 64T Spur w/Ridged Hub Axial Yeti Score 1/16 Rally Parts It's a direct-fit hop-up designedRobinson Racing 1564 Gen3 Slipper Unit 64T Spur w Ridged Hub Axial Yeti This is the optional Robinson Racing Gen3 64 Tooth Slipper Unit for the Axial Yeti. FEATURES Captured design prevents slipper pad blowout, and offers maximum power delivery Hardened steel 64T spur gear Aircraft grade billet aluminum backplate will not bend or break Increased surface area of slipper pad for dependable performance INCLUDES Slipper Pad Ball Bearing Spur Gear Backplate