Greg is right, of course. But here's a reliable source too;
Originally Posted By sixstarved
I have a 2004-r. You can get an adapter for the 700r4. The 200 does not require a driveshaft change if going from a th350 or st300 2spd. The 700 has slightly lower gearing and more available 'user friendly' mods. I like the higher 4th of the 200 and the fact i didn't have to get a new driveshaft or adapter plate. i wish my speedo gears were as easy to change and I had more choices in governor mods like the 700. Both require crossmember mods. Don't assume the new crossmember will fit perfect to your pontiac with either trans. Maybe it will. Mine didn't.
