Commodore hubs on early Holdens

[DANNY8]

Anyone know anything about putting Commodore hubs on early Holdens....specifically a HJ Stato? I'm looking into buying a HJ and I wouldn't mind putting my 18's on it.

Obviously the wheel adapter things aren't any good as they can break, but is there any there way to get my 18's fitting on it?

[88GreenVN]

Is there any other forums for the "oldies"? Someone will have done it already.

[Calaber]

If I remember correclty, there is only0.5mm difference in PCD between the HJ and Commodore stud patterns. I'm pretty sure the Commodore rims will fit an HJ and still allow the nute to be done up.

[Astranomical]

And the car will be able to be driven safely, without risk of snapping the studs?

[Calaber]

I can only remember that my brother fitted mags to his new VB Commodore when he first bought it in early 1979, and aftermarket wheels for Commodores were not available at that stage as Commodores had only been on the market a few months. He put Aunger Hotwires that were intended for HQ-HZ fitment on the car. I remember they fitted easily, but I don't know the hub diameter. To my knowledge,the stud pattern for the VB remained unchanged right up to and including VZ, (except for the four cylinder Commodores) It might be that the HQ-HZ hub diameter is greater than the Commodore. Simple way to check is to try a Commodore rime on the Stateman and check the hub fit. The tiny variation in stud pattern diameter should not be a problem.

[Kruza]

yes the newer commonwhore wheels will fit....
i can prove this as i sold my 18's [from my vp wags] to my mate for his HG ute, and it bolted up, no problems. he changed the studs [to the vb/vp studs], and doesnt have a problem to this day..[ been over 6 months now]

all he needs now is a wheel alignment, and done deal..
oh, and he has a 308 with a muncie, so it does get thrashed a fair bit. lol.

[Reaper]

If I remember correclty, there is only0.5mm difference in PCD between the HJ and Commodore stud patterns. I'm pretty sure the Commodore rims will fit an HJ and still allow the nute to be done up.

It's actually only 0.6mm but is the difference between being safe and having wheel studs breaking at the most inconvenient time. Not recommended and if you choose to go this route then please don't drive it anywhere near me.

The correct way is to source disks/axles/whatever with the correct stud pattern. Rears are dead easy to get modified. There are a heap of kits around for the fronts. Check out http://www.hoppers.com.au/ who have most of the stuff you will ever need on the shelf.

Reaper

[DANNY8]

.65mm to be exact from wat I've read. But apparently it's only cos the older Holdens use a skinnier stud, and the Commo's use a slightly thicker one. So if they can be drilled out slightly and use Commodore studs, well that's one problem sorted. Another problem is the offset and the front tyres rub on suspension. Not sure if that will be an issue with my 18's, will have to try that one out.

And lastly apparently the centre is different between Commo's and the early girls. Sumfin like Commo mags are designed for the centre to take some of the weight, and the old girls the studs take all the weight.....not sure about that tho.

[DANNY8]

I rekon if I try and get Commodore studs put into the HJ rotors it could be fine.

I put my 18's on my bro's HZ tonner and there's no clearance issues at all. The stud is slightly smaller in diameter tho, so hopefully Commy studs is all I need. I'm not even sure if they can be put in, but I guess somehow they should.

[Reaper]

Bad idea. A wheel stud is designed to carry load in tension only. What you are doing is applying a bending force as well as the tension. How about getting the stud pattern the correct pcd and then you don't have to worry about it? does nobody do jobs properly any more???

Reaper

[DANNY8]

Bad idea. A wheel stud is designed to carry load in tension only. What you are doing is applying a bending force as well as the tension. How about getting the stud pattern the correct pcd and then you don't have to worry about it? does nobody do jobs properly any more???

Reaper

Which is why I wanna look into getting Commodore studs put in. Coz the reason the PCD is .65mm out is coz of the thinner studs used in the early girls....so putting Commodore ones in should make the PCD 120mm the same as the Commo.

That's the way I see it anyways.....I'll use an old hub and have a go first, I'm not even sure how the studs are held in, so when I get one I'll have a suss.

[DANNY8]

Here's some info and pics of the Stato I'm more then likely getting. I was after a 308 Commy but there's not much around at the moment. This Stato is killer.

It's a 76 HJ 308 turbo 400.









It's only been on the road about a week since the following was done (the guy hasn't finished it, says he's lost interest and the missus wants a spot in the shed).

All new...
Rear springs
Rear Shockers
Rear upper trailing arms
Rear lower trailing arms
Rear brake drums
Rear brake shoes
Rear wheel cylinders
Front springs
Front shockers
Front brake rotors
Front brake pads
Front wheel bearings
Front brake hoses
Front upper control arms
Front lower control arms
Tie rod ends
Noltec bushes used throughout the whole car
Idler arm
Sway bar mounts
Sway bar link kits
Steering box
Brake master cylinder
IMPCO LPG Conversion
Head light upgrade (Arctic blue)
Battery
Electric Dizzy
Pioneer MP3 player
Pioneer 6x9's
Blaupunkt splits in front
Timber and brass steering wheel (legal)
Boss kit
New amp
Transmission overhaul kit
Old skool dragway splats polished
Two new front tyres
90% rear tyres
Just been serviced and tuned.
Comes with a set of genuine workshop manuals (5), Max Ellery workshop manual, interiour paint, spare grill, original steering wheel, new starter.

[Tom_1569]

Danny.... Please what ever you choose to do CHANGE THE STUD PATTERN, to the correct one.
Have a look on Oldholden, and just ask on ther (please dont its asked to much) but you cant fit commodore wheels to a HQ pattern. Yes they will bolt up, but its puts to much strain on the studs and snaps. Just dont do it is the simple answer.

[DANNY8]

Yeah I've read all that on OldHolden.....who said I was gonna do it? I've only said I was gonna look into getting my hubs customised to fit Commo wheels....so no need to stress lol.

I know someone who's got Commo wheels on his old Monaro, and also uses them on his 57 chev.....he doesn't drive them too much but he said he's never had any problems.

[Reaper]

Which is why I wanna look into getting Commodore studs put in. Coz the reason the PCD is .65mm out is coz of the thinner studs used in the early girls....so putting Commodore ones in should make the PCD 120mm the same as the Commo.

That's the way I see it anyways.....I'll use an old hub and have a go first, I'm not even sure how the studs are held in, so when I get one I'll have a suss.

Simply drilling out the holes and fitting larger studs DOES NOT CHANGE THE PCD.

Reaper

[DANNY8]

Simply drilling out the holes and fitting larger studs DOES NOT CHANGE THE PCD.

Reaper

Not normally no, but in this case I think it might work coz the only thing which makes the Commo and HJ's PCD different is the HJ's studs are smaller, which creates the slightly larger PCD, as the smaller the stud, the more length between them.

I could be completely wrong, but it's just a theory. When I get my HJ I'll look into it more.

[DANNY8]

Check out my diagram. You see the way I understand the PCD, it's measured from the outside of the stud, to the outside of the next stud. So changing the thickness of the studs will alter the PCD.

But I could have this all wrong....I dunno.

[Reaper]

Check out my diagram. You see the way I understand the PCD, it's measured from the outside of the stud, to the outside of the next stud. So changing the thickness of the studs will alter the PCD.

But I could have this all wrong....I dunno.

No. PCD is when you scribe a circle at (say) 120mm and then centre punch and drill the stud holes at equal spacings around that circle. The size of the wheel studs makes no difference to the PCD what so ever.



Reaper

[AirStrike]

My cousins has set his LX up to take commodore rims. Used HQ rotors and had the studs removed, holes redrilled and commodore studs fitted. Not an issue in the world.

[Reaper]

My cousins has set his LX up to take commodore rims. Used HQ rotors and had the studs removed, holes redrilled and commodore studs fitted. Not an issue in the world.

If the holes are re-drilled to the correct pcd then it's fine. How it should be done.

Reaper

[DANNY8]

Ahh I see.....thx for sharing that Reaper...so I did have it wrong after all that haha.

I might have to do wat Airstrike's cousin has done.....hopefully it won't cost an arm and a leg.

Who would do that sort of work? My Uncle has a lathe and does a fair bit of machining and fabrication, I might have to give him a buz.

[Reaper]

I'd just go for a hoppers kit. They are not particularly expensive and i'ts a straight forward bolt on gig.

Reaper