[72blu]

I had what I believed was a rear main seal leak on my LQ9 but after further investigating it ended up being a leak from one of the rear cover bolts. I did the job on a hoist so I cant really speak on the difficulty of doing it on your back. I know they also make a rear cover with the seal already in place and all you would have to do is slide it in place over the crank.
Heres the part on Amazon https://www.amazon.com/Dorman-635-51.../dp/B009ZBSBMO