Fourtrak diff oil seal

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Hi all I have found that my 98 Fourtrak has developed a oil leak from the rear diff oil seal on the prop-shaft union, and I would like to know how hard is it to get the old seal and bearing out and fit new ones? I presume they are a “press fit” so will I be able to change them or is it best just to take it to the local garage? (I don’t have any special kit like “pullers” etc)
Cheers.