Just a tip, or two. The cylinder will leak compressed air as you change seals. With the summer and the humidity the compressor air will have a lot of water in it. If you have a water trap keep an eye on it as it will fill up quickly. I'd advise a complete oil change before starting the engine to remove any water in the pan oil. Use a small screw driver tip magnet to remove and re-install keepers.

92 Montero LS 3.0L V6 Auto, Stock, Original owner, 185,800K miles