1973 Duster with make over

I double checked the tunnel and the drive shaft will hit my cross member in the rear before it touches anything else. The thing that has me confused about what your saying is pinion offset needing to be changed and it being easy. My axle housing end flanges are equal distance from the center line of the car. The 4 link mounts on the axle housing are equal distances from the axle center line not the yoke and the frame mounts for the links are equal distance from the cars center line. That makes my axle housing square in the car. The pinion is offset to the axle housing center line making the yoke set around 1.5 inches toward the driver side of the car. It is normal in cars and trucks the yoke not being on center line of the vehicle. Were you thinking my yoke was perfectly centered in the axle housing?