So, you could save about 500lbs going to rwd on a sy? Also about 7 percent driveline loss savings? So if you had a 12.40 stocker and converted do you think that same truck would be running 11.40? If i ever come across a high mile sy for cheap, i would like to try that and keep the extra parts for my other sy . Seems like you could get high11s easy with rwd, well a few bolt ons anyway. Then it would be like comparing it to a grand national or turbo ta as far as responding to mods, where i see some of the turbo ta guys running mid to low 11s with bolt ons. Just rambling......