Drill straight through, use small bits and work your way up, take your time. If your angle is off, you can risk drilling out the mating surface where the upper oil pan is supposed to seal to the block.
As stated above, you must remove the lower and upper oil pans, when you remove the old rtv, use a flat and wide scraper. Don't use a screw driver and scratch the matting surfaces. Clean the mating surfaces with a cloth rag and some carb or brake cleaner before putting on the new rtv gasket (I used permatex, the grey stuff, works great, not a single leak/drop).
This is pretty much a no brainer, don't rush the job, get the right parts, stay organized to put things back together, double check your work (tighten down all of the bolts and put back in their original locations, the lengths will be different). You'll be fine.
Oh and the last part, there are 2 nuts (yes nuts not bolts) that come off on the upper oil pan and are on the side of the pan towards the transmission. You can see the flywheel through this portion of the upper oil pan, the 2 nuts are hiding up there, I found them easiest to get to with a small socket set I had laying around. I'm pretty sure they were 2 10mm nuts, huge PITA to reach with an open ended wrench or any other tool. Be sure to take out those nuts before prying off the pan.
Last edited by ferrari21
on 2012-10-04
at 20-08-39.
Reason: Ment to say "upper oil pan" in my top paragraph and not lower oil pan. Didn't want to confuse.