I was referring to the cost savings and simplicity of the use of
threaded holes for the lugs, rather than fitting studs to a one piece
hub/rotor design. With studs added to a one piece setup we would have to
move studs over to replacement rotors or replacement rotors would have
to include new studs.

VW switched to separate front hubs and rotors in the last T3 production
in RSA along with 15" wheels. Lots of people have upgraded to this
setup. It would have been nice if that was how they came in our models.

Mark

Mike S wrote:
> On 8/28/2012 2:58 PM, mark drillock wrote:
>> Because the front bearing hubs are integral with the disc rotors it
>> makes sense that the front uses bolts. Lower manufacturing costs for the
>> rotors, which need periodic replacement. VW was keeping things simple
>> and costs down, good things to do.
>
> Rotor manufacturing and ongoing maintenance costs would have been even
> lower if they weren't one piece with the hub, which can be expected to
> rarely need replacement. The cost savings for the one piece hub/rotor is
> only in the initial mfg/assy.
>