Centering new rearend ?

I just measured my rear end and I found that the pinion is not centered between the spring pads. The center line of the pinion measures about 2&1/2" closer to the pad on the passenger side. I thought that was odd so I measured it THREE times to make sure I didn't tell you wrong info. This rear is for my '67. The distance from the spring pads to the brake is the same on both sides though.

Here is a link to another thread with some more dimensions that might be useful.

http://www.forabodiesonly.com/mopar/showthread.php?t=120497