Hey, I am a pro at this. Just did it for the first time, then second, then third time in one day. I got the pan out with little problem, oh, I have a 440 with hooker headers in a Satellite. I did not have much of a problem getting the pan out. The bolts in front are a bit of a pain, but with small fingers you will be fine. The the windage tray had to come out. This was easier than the pan, except for the amount of gasket material the guy before me used. Got it all cleaned up and ordered me a new chrome one, could not find an OEM under $260. Bought one of those blue pro something or other composite gaskets to make things simple. Decided to paint the old pan in Hemi Orange like it was. Pounded out someone else's dings as was ready to put the sucker back into the spaghetti. Put a gasket on the windage tray, another between it and the pan and put a large amount of "the best" gasket material/sealer I could find. Got under the beast and thought back to how it was I got the pan out to begin with. Thought I remembered, but before I could execute my first attempt, the friggin blue multi compound gasket separated from the pan. I reacted quickly in order to not lose the windage tray. I now know what the safety driving course instructor meant when he said that you reactions would become weaker as you got older. I lost it all on the very first attempt. Being pissed, I tried to force it up in the cavity. I twisted it until I didn't have any of the gasket sealer left on the pan or tray. It was all over me, the new paint job on the pan, on the crank, on the hookers. Somehow, a little got on the surface of the block.........time for a beer and bed. The next day I got the pan out of the bushes and the windage tray out of the garbage and cleaned them up and had to pound some new dents out of the pan and repaint it. Oh, by now the rim of the pan was not so straight, but a little work made it so. Mean while, I got back on this site and searched for an easier, or more correct, way of doing this. No, I wasn't going to put that new chrome pan on this car.......not on your life. Here is the way to do this.......
Go on to Jegs and order the windage tray with the molded in gaskets on both sides. Buy the "Grey" gasket material and lay a bead on both sides of the gasket of the tray. (This may not be necessary but I did not want to take this off the car again.) Do not put a bead on the pan. Remember, less is better. You may not even need any goop, but I was not in a mood to repeat the night before. I think I would be sleeping in the garage if I came in like I did the night before. I did learn that you can drown your sorrows with a garage frig full of beer, but your wife will not believe you when you tell her what she smelt was fumes from a potent adhesive. Now, here is the trick.
Before you attempt to put the pan and tray on, try each of them without any goop on them. The tray is easy. The pan...stick the leading front left edge up as far as it will go in the space you have. Now take the rear right part and get it as far right as you can. Make sure the pick up is is not over the baffle at this point. Now twist the pan clockwise from the the rear, trying to keep that front left edge up in the cavity space. With luck, it will pop over the oil pick up and your home free. Take it back off the same way, only twist and pull it backward. Now put the tray and the pan together and execute the procedure. I call it twist and shout.
Now, all of this was after you take the steering rod going across the pan off from the right hand side (passenger side) and swinging it out of the way. This sounds simple, but if you have nuts that were there since the car was made 49 years ago, you may lose a nut or two doing it. No problem, at 70, you may not need those anyway.
Good luck, sure hope this helps.