I'm not 100% on this, but I believe they are different. I have a '93 2.5L and looking for new motor mounts recently, I saw a few older YJ's and they looked a little bit off. I know that's not the tech info you wanted, but hope it helps.
no they are not the same.... you need the engine brackets and rubber mounts from the same year as the frame or a little bit of creativity... if you can do really simple fabbing then you need no help if you can't then find the right parts
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