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I last did that in an hour, but add another if its your first time.

You need to remove the intake and exhaust manifolds since it is a dual purpose gasket.

Actually, you only need to remove the nuts and pull them free of the studs, then you can remove the old gasket and insert the new one, you just need enough room to do that, then move the manifolds back over he studs. This is mostly true for the intake since the exhaust mounts to the same studs, but over the top of the intake, so once the exhaust is free you can let if drop to the fender, then all you need to handle is the intake.

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Q: How long does it take to replace an exhaust manifold gasket on a 1990 jeep wrangler?
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