If the specialized tools aren't available, the front seal can be replaced using normal hand tools. Before installing the cover, use a punch to carefully knock the old seal out of the cover, and a seal driver to seat the new seal.
The front cover oil seal can be removed and a new one installed without removing the front cover.
CAUTION
When draining the coolant, keep in mind that cats and dogs are attracted
by the ethylene glycol antifreeze, and are quite likely to drink any that
is left in an uncovered container or in puddles on the ground. This will
prove fatal in sufficient quantity. Always drain the coolant into a sealable
container. Coolant should be reused unless it is contaminated or several
years old.
To install: