Notification

Icon
Error

Login


Take the time to read our Privacy Policy.
Commodore stud pattern vs HQ
Options Go to last post Go to first unread
Previous Topic Next Topic
htprem350 Offline
#1 Posted : Tuesday, 25 March 2008 11:00:03 PM(UTC)
htprem350

Rank: Member

Reputation:

Groups: Registered
Joined: 6/03/2008(UTC)
Posts: 14
Hi all,

I have made a major boo boo, have a nine inch diff in Ht with Commodore rear disc brakes and stud pattern.
Now have gone to purchase and fit Weld Draglites and have been told they don't come in Commodore pattern only Chev(HQ).

I have been told they will fit though it will be tight and may stress the studs, has anyone out there come across this and will it be ok.
I do not want to redrill the axles as they have just been made and brought from Moser.

Cheers
Back to top
Guest
#2 Posted : Wednesday, 26 March 2008 12:28:40 AM(UTC)
Guest

Rank: Guest

Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977

Was thanked: 5 time(s) in 5 post(s)
Under NO circumstances even try and fit HQ pattern rims onto commodore pattern axles.

Many people have done it and some of them are dead..!!

The HQ Pattern and Commodore pattern actually look the same but there is about a 1.5mm difference in the stu
Back to top
Jim5.0 Offline
#3 Posted : Wednesday, 26 March 2008 1:42:36 AM(UTC)
Jim5.0

Rank: Veteran

Reputation:

Groups: Moderator, Registered, Veteran
Joined: 2/03/2005(UTC)
Posts: 2,898

Was thanked: 2 time(s) in 2 post(s)
You might be lucky here. Commodores had a 12mm stud and HQ's had a 7/16" stud. Fords have a larger 1/2" stud. Maybe your diff place can offset drill the stud holes out to HQ pattern and you can fit bigger Ford studs to the now enlarged holes.

---------
Back to top
Jim5.0 Offline
#4 Posted : Wednesday, 26 March 2008 1:42:36 AM(UTC)
Jim5.0

Rank: Veteran

Reputation:

Groups: Moderator, Registered, Veteran
Joined: 2/03/2005(UTC)
Posts: 2,898

Was thanked: 2 time(s) in 2 post(s)
You might be lucky here. Commodores had a 12mm stud and HQs had a 7/16" stud. Fords have a larger 1/2" stud. Maybe your diff place can offset drill the stud holes out to HQ pattern and you can fit bigger Ford studs to the now enlarged holes.

----------
Back to top
JBM Offline
#5 Posted : Wednesday, 26 March 2008 2:09:42 AM(UTC)
JBM

Rank: Member

Reputation:

Groups: Registered
Joined: 28/03/2006(UTC)
Posts: 810

Thanks: 1 times
Was thanked: 1 time(s) in 1 post(s)
Because you have discs on the back you can get blank rotors so that they can be drilled to any pattern. You can put your old rotors on eBay to recoup some of the costs if they are still usable.

James

-------------------------------------------------
You only have to be in front at the end of the race.
Back to top
htprem350 Offline
#6 Posted : Wednesday, 26 March 2008 2:55:56 AM(UTC)
htprem350

Rank: Member

Reputation:

Groups: Registered
Joined: 6/03/2008(UTC)
Posts: 14
quote:
Originally posted by Luke
Under NO circumstances even try and fit HQ pattern rims onto commodore pattern axles.

Many
Back to top
htprem350 Offline
#7 Posted : Wednesday, 26 March 2008 2:57:17 AM(UTC)
htprem350

Rank: Member

Reputation:

Groups: Registered
Joined: 6/03/2008(UTC)
Posts: 14
quote:
Originally posted by Jim5.0
You might be lucky here. Commodores had a 12mm stud and HQs had a 7/16" stud. Fords have a
Back to top
htprem350 Offline
#8 Posted : Wednesday, 26 March 2008 2:57:17 AM(UTC)
htprem350

Rank: Member

Reputation:

Groups: Registered
Joined: 6/03/2008(UTC)
Posts: 14
quote:
Originally posted by Jim5.0
You might be lucky here. Commodores had a 12mm stud and HQ's had a 7/16" stud. Fords have a
Back to top
htprem350 Offline
#9 Posted : Wednesday, 26 March 2008 2:58:18 AM(UTC)
htprem350

Rank: Member

Reputation:

Groups: Registered
Joined: 6/03/2008(UTC)
Posts: 14
quote:
Originally posted by JBM
Because you have discs on the back you can get blank rotors so that they can be drilled to any
Back to top
JBM Offline
#10 Posted : Wednesday, 26 March 2008 2:58:46 AM(UTC)
JBM

Rank: Member

Reputation:

Groups: Registered
Joined: 28/03/2006(UTC)
Posts: 810

Thanks: 1 times
Was thanked: 1 time(s) in 1 post(s)
quote:
Originally posted by JBM
Because you have discs on the back you can get blank rotors so that they can be drilled to any
You only have to be in front at the end of the race.
Back to top
Guest
#11 Posted : Thursday, 27 March 2008 1:17:28 AM(UTC)
Guest

Rank: Guest

Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977

Was thanked: 5 time(s) in 5 post(s)
where does one buy blank rotors or who re drills axles it sounds like the perfect answer to fit discs to the rear of my hq cheers
Back to top
Guest
#12 Posted : Thursday, 27 March 2008 1:40:48 AM(UTC)
Guest

Rank: Guest

Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977

Was thanked: 5 time(s) in 5 post(s)
I think Jims got the right idea although Im sure moser axles have 1/2" studs already fitted (mine do)

if that wont work, id get the axles flanges drilled, those axles are plenty strong enough to cope with it. Get some blank disc drilled to suit.
Any
Back to top
Guest
#13 Posted : Thursday, 27 March 2008 1:40:48 AM(UTC)
Guest

Rank: Guest

Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977

Was thanked: 5 time(s) in 5 post(s)
I think Jim's got the right idea although Im sure moser axles have 1/2" studs already fitted (mine do)

if that wont work, i'd get the axles flanges drilled, those axles are plenty strong enough to cope with it. Get some blank disc drilled to suit.
An
Back to top
Fred Offline
#14 Posted : Thursday, 27 March 2008 2:01:16 AM(UTC)
Fred

Rank: Member

Reputation:

Groups: Registered
Joined: 23/07/2006(UTC)
Posts: 207
Come on there only rims just choose a set that takes the Commodore pattern.
Back to top
Dr Terry Offline
#15 Posted : Thursday, 27 March 2008 7:11:29 PM(UTC)
Dr Terry

Rank: Veteran

Reputation:

Groups: Moderator, Registered
Joined: 1/03/2005(UTC)
Posts: 6,092

Thanks: 1 times
Was thanked: 211 time(s) in 192 post(s)
quote:
Originally posted by Fred
Come on there only rims just choose a set that takes the Commodore pattern.
If at first you don't succeed, just call it Version 1.0
Back to top
Guest
#16 Posted : Friday, 28 March 2008 1:44:00 AM(UTC)
Guest

Rank: Guest

Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977

Was thanked: 5 time(s) in 5 post(s)
where does one buy blank rear commodore rotors in nsw ?cheers
Back to top
Guest
#17 Posted : Friday, 28 March 2008 2:34:44 AM(UTC)
Guest

Rank: Guest

Groups: Guests
Joined: 2/09/2015(UTC)
Posts: 43,977

Was thanked: 5 time(s) in 5 post(s)
where can i buy blank rotors in nsw cheers
Back to top
JBM Offline
#18 Posted : Friday, 28 March 2008 4:11:27 AM(UTC)
JBM

Rank: Member

Reputation:

Groups: Registered
Joined: 28/03/2006(UTC)
Posts: 810

Thanks: 1 times
Was thanked: 1 time(s) in 1 post(s)
Try a DBA retailer, they make stock and performance rotors.

This is the Rares on line shop. https://rsp-secure.com/rarespares/

Or DBA itself. http://www.dba.com.au/2006/default.asp

James

-------------------------------------------------------
You only have to be in front at the end of the race.
Back to top
peter_flane Offline
#19 Posted : Friday, 28 March 2008 6:37:23 AM(UTC)
peter_flane

Rank: Veteran

Reputation:

Groups: Registered, Veteran
Joined: 22/05/2005(UTC)
Posts: 1,384
You don't need blank rear rotors. The Commodore rear rotors fit on HQ stud pattern, as Dr Terry mentioned, they differ by not much. The important part of the setup is that the centre hub hole in the rotor fits very neatly on the centre flange on the axle.
If it is old or rare - Cut it! http://www.ehlimo.com.au/
Back to top
peter_flane Offline
#20 Posted : Friday, 28 March 2008 6:37:23 AM(UTC)
peter_flane

Rank: Veteran

Reputation:

Groups: Registered, Veteran
Joined: 22/05/2005(UTC)
Posts: 1,384
You dont need blank rear rotors. The Commodore rear rotors fit on HQ stud pattern, as Dr Terry mentioned, they differ by not much. The important part of the setup is that the centre hub hole in the rotor fits very neatly on the centre flange on the axle.
If it is old or rare - Cut it! http://www.ehlimo.com.au/
Back to top
Users browsing this topic
Guest (6)
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.

Powered by YAF | YAF © 2003-2025, Yet Another Forum.NET
This page was generated in 0.092 seconds.