Traxxas 1/10 Slash 4x4 Ultimate BLUE 6061 T6 & NYLON REAR STUB AXLE CARRIERS Blue Anodized Aluminum Rear Stub Axle Carriers (Part # 1952X Partial) Black Nylon Stub Axle Housing (Part # 1952) Four (4) 5x11x4mm Ball bearings (Part # 5116) (Part # 5116 x 2) Includes: 2 Rear Stub Axle Carriers - Blue Aluminum (Part # 1952X) 2 Rear Stub Axle Carriers - Plastic (Part # 1952) 2 Ball Bearings - 5x11x4mm (Part # 5116 x 2) Part number(s) included (in factory packaging): 1952X 1952 5116