need help centering my diff??

[aany001]

This might be a stupid question but how do I know my differential is centered in my car (69 camaro). I have the DSE mini tub kit with a shortened 10 bolt and the factory perches cut off.Just would like to know where is the centre line for these diffs?? As of right know when I have the complete diff assembled with my disc brakes and 18x12 wheels installed in the car the left rear wheel is closer to the quarter lip than the right side by 3/4".From the back of the car you can really see the difference.I tried sliding the whole diff to the right approx 1/2" but I loose my gap between the left inner tire to leaf spring clearance.I have lots of space on the pass rear tire inner and outer!!! some body please shed some light on the situation!!! At least if I know that the diff is where it is supposed to be I can figure out my other clearance issues.

Thanks in advance.

Steve

[chicane]

Factory GM pinion offset from chassis centerline is... 0.500" to the passenger side.

Factory GM pinion angle, which is set at the time the perches are welded to the tubes is... +4*.

[Bowtieracing]

Originally Posted by chicane

Factory GM pinion offset from chassis centerline is... 0.500" to the passenger side.

Factory GM pinion angle, which is set at the time the perches are welded to the tubes is... +4*.

Once again , good info

[aany001]

thanks for the info

[lewismd71]

Tape measure. Measure from each spring perch to pinion center. Numbers should be the same.

[wedged]

based on the chance that you've got 2 different axle lengths, determine the center of the rear by measuring the OAL , flange to flange, then divide by 2. Measuring from the pinion out will be wrong if it is offset. Someone I know did that by mistake on a pro street car and now has a gap variance from the rear tire to the 1/4.