Hi rick, thanks for the reply. '3dWarp -gridset' prevents the deoblique from changing the grid dimensions. However, there are many processes downstream that I'll need to redo if I start back from 3dWarp. Is there's a function that can allow me to just re-grid my final dataset? I tried a "3dWarp -gridset" (with the -deoblique option since you need to specify some transformation) on my final dataset but it clips brain voxels off the edge. If there isn't, it's okay - I'll simply restart the processing pathway.