Need help replacing seal

[awayatc]

Enclosed are pics of a seal i need to replace, but need a hand,
Anybody?:banana:

[Hitcher]

An eskimo pushes his Skidoo into his local garage.

The mechanic says "Looks like you've blown a seal."

The eskimo says "No, it's just the frost on my moustache,"

[SlashWylde]

Here you go...