Do you already have the Atlas? If you do then you will need a Bronco adaptor for the C6<br><br>If not, then get a 4WD C6 and just order an Atlas for that. It will save you from having to buy an adaptor.<br><br>Call up Advanced Adaptors and talk with them. I almost got an Atlas for a V8 Explorer and used the Excuse that the money I saved on the adaptor could be put toward the Atlas. The I got a killer deal on a 2WD transmission.<br><br>Overall length will grow. Be prepared for butchering the floor for transfer case clearance or doing a body lift (if not already done or planned)