trying to free up a stuck tumbler and need to know if there's a way to remove the inner cylinder/tumbler assy. I've already got that housing removed from the main mount(key to acc., push the pin, remove etc), but am unable to get to the heart of it all. Tried all kinds of spay lubes and cleaners, still have the one hanging up. Oh yea, it's a '92 FJ80. Thanks.