Suspension TECH Including Brakes, Wheels and tires

          
 
 
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Old 04-26-2026, 02:49 AM
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dataway dataway is offline
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Default Rear Axle Off Center?

I keep having a heck of a time trying to square up my 68 GTO to align the front end. Every measurement I make shows either the front wheels, or the rear wheels offset 1" total (meaning something needs to be moved 1/2")

I built a pretty accurate laser device the attaches to the rear wheel rim at the bead. Every measurement I take shows the front wheels offset 1" to the right (passenger side). So either they are both front wheels are offset, or the rear axle is not centered in the frame ( 1/2" off towards the driver side)

Everything is all stock, all matching code and date OEM wheels, all the same tires (I'm not using the tires for any measurement). Front end has same number of shims in the same places on both sides.

So, I have a couple of questions.

1. What is the best way to check if the rear axle is centered in the frame.

2. Can anything be done about it if it is off center?

3. Can it still be aligned if this can't be cured?

4. Is there any weird way one of the front wheels could be offset more than the other? (again, all OEM parts). One oddity, one front wheel has a 2 piece drum, the other is one piece, both were used in 68.

The rear wheel track is already about 1" less than the front on a 68 GTO as per factory spec ... so that doesn't make things any easier.

Any ideas?

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