Polaris Rear Axle 250 6x6 ATV Rear Axle Set of 2 ball bearings for use in the ATV rear axle, also bearings are pre-lubricated with grease, each bearing has 2 rubber seals to protect the bearing from dust or any possible contamination, bearings are packed in the original manufacturer bag, Bearings are made of Chrome Steel. Lubrication: Self Lubricated (Grease) TRX350FM FourTrax Rancher 4x4 (00-03) TRX350TE FourTrax Rancher ES (00-03) TRX350D FourTrax Foreman 4x4 (87-89) TRX350FE FourTrax Rancher 4x4 (00-03) TRX350TM FourTrax Rancher (02 & 03) TRX500FA FourTrax Foreman Rubi (00-02) TRX350FM FourTrax Rancher (00 & 01) TRX400FW FourTrax Foreman 4x4 (95-02) TRX450FE FourTrax Foreman ES 4 (02) TRX450FM FourTrax Foreman S 4x (02) KLF400 Bayou 400 4x4 (93-96, 98 & 99) International Big Boss 6x6 SL