Trailer Hubs

[Ext User(jacko6777@yahoo.com.au)]

Hi All

Looking at buying a trailer. As I drive a Commodore I want one with
Commodore hubs so I can fit the car's spare tyre to the trailer if the
need arises.

The trailer in question has 14 inch wheels that have GM marked on them.
Is there an easy way to tell if they are HQ hubs or commodore hubs.
It is a brand new trailer but the guy selling it doesn't seem to really
know.

Jacko

[Ext User(atec77)]

jacko6777@yahoo.com.au wrote:
> Hi All
>
> Looking at buying a trailer. As I drive a Commodore I want one with
> Commodore hubs so I can fit the car's spare tyre to the trailer if the
> need arises.
>
> The trailer in question has 14 inch wheels that have GM marked on them.
> Is there an easy way to tell if they are HQ hubs or commodore hubs.
> It is a brand new trailer but the guy selling it doesn't seem to really
> know.
>
> Jacko
>
14" normally HQ/ measure the studs ?

[Ext User(jacko6777@yahoo.com.au)]

atec77 wrote:
> jacko6777@yahoo.com.au wrote:
> > Hi All
> >
> > Looking at buying a trailer. As I drive a Commodore I want one with
> > Commodore hubs so I can fit the car's spare tyre to the trailer if the
> > need arises.
> >
> > The trailer in question has 14 inch wheels that have GM marked on them.
> > Is there an easy way to tell if they are HQ hubs or commodore hubs.
> > It is a brand new trailer but the guy selling it doesn't seem to really
> > know.
> >
> > Jacko
> >
> 14" normally HQ/ measure the studs ?

Where can I find the measurements? Is it much different that would be
obvious?

Jacko

[Ext User(Noddy)]

<jacko6777@yahoo.com.au> wrote in message
news:1161222314.501107.316550@i3g2000cwc.googlegro ups.com...

> Where can I find the measurements? Is it much different that would be
> obvious?

I think it's a 1/4 inch difference in the stud spacing, and if you can tell
that by eye when looking at a 5 stud hub you're doing better than me :)

Easiest way to check would be to try bolting your spare wheel on to what it
has now, or find a trailer manufacturer who knows the difference.

--
Regards,
Noddy.

[Ext User(Athol)]

Noddy <dg4163@(nospam)dodo.com.au> wrote:
> <jacko6777@yahoo.com.au> wrote:

>> Where can I find the measurements? Is it much different that would be
>> obvious?

> I think it's a 1/4 inch difference in the stud spacing, and if you can tell
> that by eye when looking at a 5 stud hub you're doing better than me :)

If you draw a circle through the centre of all five studs, the HQ pattern is
a 4.75" (120.6mm) diameter circle and the Commode is 120mm. That's 0.6mm of
difference, not 1/4" (6mm)...

> Easiest way to check would be to try bolting your spare wheel on to what it
> has now, or find a trailer manufacturer who knows the difference.

The offset of the rims is going to be way more relevant than the stud pattern
for determining which it is. If the rims are offset about 18mm, they'll be
HQ. If the rims are offset about 43mm, they'll be commode.

--
Athol
<http://cust.idl.com.au/athol> Linux Registered User # 254000
I'm a Libran Engineer. I don't argue, I discuss.

[Ext User(2ofdem)]

Noddy (nospam) wrote:
> <jacko6777@yahoo.com.au> wrote in message
> news:1161222314.501107.316550@i3g2000cwc.googlegro ups.com...
>
> > Where can I find the measurements? Is it much different that would be
> > obvious?
>
> I think it's a 1/4 inch difference in the stud spacing, and if you can tell
> that by eye when looking at a 5 stud hub you're doing better than me :)
>
> Easiest way to check would be to try bolting your spare wheel on to what it
> has now, or find a trailer manufacturer who knows the difference.
>
> --
> Regards,
> Noddy

The HQ rims will fit onto a commodore just fine but if you look around
the stud holes youll see they wont be quite centre there is a .3
difference in PCD but its easy enough to see if you put either on the
wrong studd pattern.

[Ext User(Noddy)]

"Athol" <me@privacy.net> wrote in message
news:1161225525.671355@idlwebserver.idl.com.au...

> If you draw a circle through the centre of all five studs, the HQ pattern
> is
> a 4.75" (120.6mm) diameter circle and the Commode is 120mm. That's 0.6mm
> of
> difference, not 1/4" (6mm)...

Beg pardon.

--
Regards,
Noddy.

[Ext User(Athol)]

Noddy <dg4163@(nospam)dodo.com.au> wrote:
> "Athol" <me@privacy.net> wrote:

>> If you draw a circle through the centre of all five studs, the HQ pattern
>> is a 4.75" (120.6mm) diameter circle and the Commode is 120mm. That's
>> 0.6mm of difference, not 1/4" (6mm)...

> Beg pardon.

No worries. Just pointing out that it'd be pretty hard to spot by eye. :-)

--
Athol
<http://cust.idl.com.au/athol> Linux Registered User # 254000
I'm a Libran Engineer. I don't argue, I discuss.

[Ext User(Shoo)]

<jacko6777@yahoo.com.au> wrote in message
news:1161214195.139208.250320@h48g2000cwc.googlegr oups.com...
> Hi All
>
> Looking at buying a trailer. As I drive a Commodore I want one with
> Commodore hubs so I can fit the car's spare tyre to the trailer if the
> need arises.
>
> The trailer in question has 14 inch wheels that have GM marked on them.
> Is there an easy way to tell if they are HQ hubs or commodore hubs.
> It is a brand new trailer but the guy selling it doesn't seem to really
> know.

I had to buy a replacement hub and other parts for the lads tandem trailer
recently.
I was surprised at how cheap and freely available the parts are.
It was actually cheaper to buy a complete hydraulic brake backing plate
complete with shoes and slave cylinders than to repair.
Some possible combinations for stud drilling shown here.
http://www.trojanparts.com.au/index.asp?PageID=2145830281