Centering new rearend ?

I am running an 8 3/4.... just making the observation about 9" being real obvious at a glance..


I dont always assume that a professional shop knows all of this stuff,
the local spring Guru said to torque U-bolts down to 150# !
good thing I checked my factory service manual ! " tighten to 45 ft lbs... DO NOT OVERTIGHTEN U-BOLTS !!! "