Ford 8.8 Swap

I've never measured the axle tube lengths on a Chrysler rearend to see if they are equal, or if the differential is centered. But, when I installed a floor shifter and console in a '74 Duster, I noticed the transmission hump is not centered in the floor. Checking further to see why, I realized that the engine and transmission are shifted about 1" to the passenger side. Why???

If you cut axle tubes to equal lengths and center the differential, how does that work with the drivetrain shifted to one side? Wouldn't you either have a driveshaft skewed, or would you need to shift the spring perches to the left? But, then that would throw off the backspacing on the wheels...

I'm confused,
Jerry
.........u need room 4 the steering column...................kim..........