hard top

YJ Wrangler 1991, 2 doors. I previously owned a TJ, but never a YJ. I am ignorant about all this, so please don't be too harsh on me. I am a newbie. I needed to replace my soft top from my 1991 YJ wrangler, 2 doors. I bought a hard top on market place, it has a windshield wiper in the back. I...