Slipping under load...

[alexander-a]

So within the last few weeks this problem has gotten much worse. Whenever I put my foot down in 3rd 4th and 5th it just revs. If I let off the power I can move fine.

So what's broken here? Is it the clutch or something worse

[Nick Mann]

Assuming that it is a manual then yes it is the clutch.

[alexander-a]

Yes it is a manual.
When changing the clutch is there anythjng else I should do while I have it apart?

[Subaru ETA]

Machine the flywheel, rear main seal. If you want to get really involved the input shaft bearing and seal

[Davezj]

clutch release bearing but that will probably come with the clutch kit.