Ahhh so its not possible to resize the image to exact pixel dimentions this way? Because when I go to crop the image I also put these dimentions in and it assumes the ratio I want rather than letting me use the exact size.
Yes, not possible in Camera Raw (a parametric editor). Consider the Dimensions you enter for the Re-size as a 'BOX' that your new image must FIT within. So regardless of your Dimension numbers, the resized image will always be the same 'Ratio' (3:4 996:1328 in your case)
If you want an exact pixel dimension you will need to [Open] the image in Photoshop (or another pixel editor) and resize the 'Canvas' to your exact pixel dimensions (by a crop).