Changing rear cassette on old mountain bike

Skippymon
Skippymon Posts: 8
edited February 2013 in MTB workshop & tech
I have a Marin Bolinas Ridge from the late 90s and I need to replace the rear cassette and chain. As a kid I remember taking a cassette off and a load of ball bearings falling out which was an absolute pig to reassemble. Will my Marin have the more modern all enclosed design that slides onto splines?

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