I have 1989 GMC Safari and have removed the timing cover to replace
oil seal, chain and sprockets. I did not lower the oil pan to remove
the cover. Is it reasonably possible to reinstall the cover without
removing the oil pan or can you loosen only the front and lower it
enough to reinstall the cover? I don't want any leaks and am willing
to drop the pan if that is the only way to do it well. But, I am
curious anyone has had sucess without doing so.