I noticed this is your first post. Let me welcome you aboard, you're going to like it here!
You didn't mention what year car you were referring to, more info when asking a question always gets better answers.
If it's a 1st or 2nd Gen look at Church Boys Racing rear 4 link kit. It's installed with the leaf springs, rear end still in the car. This helps keep geometry right, especially for a novice installer. You'll also notice Church Boys is mentioned here a lot, that's because it's quality parts made in the USA & customer service is the best.