[Goober]

Eric, if you are just going to use the car for street, the solid rearend will work fine for you. If you kit offers the IRS for a low cost, get it. They tend to ride a little better. However, if you ever drag race, you will want a 9" or something similar. IRS setups are a little more complicated than the old solid rearend, but most kit companies that offer them are pretty much plug and play. Superformance uses the Ford 8.8 IRS while Backdraft use a BMW IRS. A lot of companies use the Jag IRS which usually has the discs inboard as opposed to the outboard discs that are normally found on most factory cars. Basically the links you speak about pertain to how the rearend is hooked up to the car. Pertains to traction and sway issues and the way it hooks up.
Come to our meeting next Saturday and you will get a chance to see all of them and talk to the owners.

Mark