Already have a DSP...bought a Flashpaq to experiment between the two....while downloading the program into the truck I came across two options that I dont know about or understand..(T. Case High Ratio and T. Case Low Ratio) I think it has something to do with my trafsfer case but not def. Can anyone help me and explain what they do and what choice to make...I tried callin superchips but they are closed for the night.

Thanks,
Ray

Its a 08 1500 Hemi