This is considered to be one of the best rocker cover gasket kits you can buy for a Jeep 4.0 liter engine. It comes with small plastic spacers in the package. VERY handy, agree. The seal is very high quality and fits perfectly. Watch some YouTube videos and read about this work online. It's easy, but there are things you MUST know before you do this or you could break something. So buy, research and get started. For me it's a two-hour job. An hour for my mechanic friend. I usually recommend this if someone also needs to do an oil pan gasket or rear main gasket. I recommend doing all three at the same time. This will take most of your weekend if your exhaust is really rusty. You will have to cut and remove the screws to remove them. Find the part numbers of the originals and buy a complete set of new ones as you will probably have to destroy the old ones to remove the muffler. Once it's off you can pull out the oil pan and RMS. In comparison, the valve cover gasket is junk. After that, your 4.0 liter engine will be very happy. Much luck. Use Fel-Pro material. This is the highest quality.
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