I currently have a 79 Chrysler Cordoba with a mild 360, A999 transmission, and 8.25 rear that has 2.45 gears in it. I'm currently trying to gather further information because my idea is to take the car to a shop to swap out the 2.45s for 3.21 gears for the rear. From what I've been told if I understand correctly, that because of an carrier issue I would probably have to swap out the axle in the rear if I want to go to a lower ratio? I really wouldn't want to do that since the prior owner just installed new springs on the rear and I believe I would need to swap out the springs with the axle as well. Anyways, I'm just trying to get confirmation on this swap and decided on where to go. FWIW, this car is all street and no drag racing.