350x rear caliper piston jammed

[twitch101]

anyone ever run into the piston pulling out the seals with it. im trying to blow it out but the seal keeps pulling it back. anyone have any tips? its soaking in wd40 right now

[jb2wheels]

Hook it up to a master cylinder and push it out? Big mess but stuck is stuck.
I've heard but not tried using a grease gun the same way.
Or just buy a used CR80 front caliper...