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Old Opeler
5,564 Posts
Measured It

The rear hubs don't stick out very much at all through the brake drums - the wheels are stud centric.
However the axle end locator for the brake drum is 57.00mm in diameter as is the front hub bit that sticks out in the centre. However the Opel is set up to have clearance on these areas and rely upon the studs to hold things true.
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