Chrysler offset,A and B body start at the front of the engine crank centerline 2" to the passenger side,1-5/8 at the trans tailshaft and 1-3/16 at the pinion centerline.These are + and- measurements since the motor,trans mounts as well as the spring perches have wiggle room.This was as mentioned for steering and pedal room.This is what you deal with for stock and backhalf cars.When building a chassis put everything on centerline