It was explained to me by a tire shop manager that it is to keep the drum in place so the average Joe doesn't freak out when it falls off while he is changing a flat on the side of the road. That made sense to me. Jeff

Jeff Stewart

----- "Rob" <becida@COMCAST.NET> wrote:

I've always thought it was a manufacturing thing

Rob

At 1/21/2011 03:56 PM, Alistair Bell wrote:
>yes, but the bolts are not needed to hold the drum on, just to keep it
>in place. You can leave them out even...
>
>alistair
>
>
>On 21-Jan-11, at 3:52 PM, Scott Daniel - Turbovans wrote:
>
>>seems just right for the application to me.
>>10mm head with 6mm thread would be much too small.
>>10mm hex head on a 7mm diameter bolt thread seems too small for that
>>diameter thread.
>>
>>8 mm thread with 12 or 13 hex head would be overkill.
>>
>>----- Original Message ----- From: "Alistair Bell" <albell@shaw.ca>
>>To: "Scott Daniel - Turbovans" <scottdaniel@TURBOVANS.COM>
>>Cc: <vanagon@GERRY.VANAGON.COM>
>>Sent: Friday, January 21, 2011 3:28 PM
>>Subject: Re: VW Necessity...
>>
>>
>>>Thanks Scott. Its funny why a 11 mm was used on the drums eh? why
>>>not 10?
>>>
>>>alistair
>>>
>>>
>>>On 21-Jan-11, at 3:13 PM, Scott Daniel - Turbovans wrote:
>>>
>>>>the only 11's I can think of on the whole van are
>>>>the brake drum retaining screws, as mentioned already ... and
>>>>there two per
>>>>rear wheel of course.
>>>>That thread is barely used on vangons ..it's a 7 mm diameter bolt
>>>>thread, of
>>>>a pretty fine pitch.
>>>>
>>>>and brake lines..
>>>>11mm on those ...12mm on the clutch hydraulics I think.
>>>>otherwise no 11's anywhere I believe.