Wheel Spindles and Hubs for original BRM Wheels

[Mark Winton]

I am using original 15" Dia. x 14" (R) and 15" x 10" (F) BRM wheels in my build.
The rear wheels have six slots to accommodate drive pins from the rear spindle. They are on a 101.6mm / 4" PCD and to accommodate a 14.29mm / 9/16" diameter drive pins. The slots are also inwardly elongated. (Refer image).
At the front six : 11.18mm / 7/16" diameter drive pins are on a 101.6mm / 4" PCD.
My post is because I require Spindles and Hubs to mount onto bespoke or replica uprights. If any builders using the original BRM wheels can advise of the Spindles / Hubs / Uprights they used; or any Suppliers who have such items can come forward - it would be appreciated.

 

[Ian Clark]

Hi Mark,

Can you check your PCD dimension please? I believe the correct pattern is 6 holes on 4.25 pcd. Also may have something for you on the uprights.

Cheers
Ian

 

[Ole Nylende]

The PCD on original wheels are 6 x 4,25".
The problem as you probably have realised is that nothing else (from what i have found) use this bolt pattern.
So you either have to modify standard hubs, machine from scratch or buy custom hubs.

AK sportcars (SGT) replicas has been delivered with the correct 6 x 4,25" pin drive setup.
So a set of uprights from them would probably be the least painful, I believe John Wisher makes (or used to make) them for SGT/AK?

 

[Mark Winton]

Hi Mark,

Can you check your PCD dimension please? I believe the correct pattern is 6 holes on 4.25 pcd. Also may have something for you on the uprights.

Cheers
Ian

Thanks Ian and Ole ... I got the 4" from my CAD model; but I will certainly check ...

 

[Ryan L]

My post is because I require Spindles and Hubs to mount onto bespoke or replica uprights. If any builders using the original BRM wheels can advise of the Spindles / Hubs / Uprights they used; or any Suppliers who have such items can come forward - it would be appreciated.

Mark, the originals used a live hub design that rotates inside a large bearing that was held stationary within the upright casting. This is a different design to that which most OEM early double A arm front knuckles used, EG Cortina/Gemini/MX5/Jaguar/HQ holden ect. (stuff commonly available in Australia)

If you are going to use one of those typical knuckles, you would need to seek out an undrilled trailer hub to mount onto the stub axle and try and make a bearing fit. There are places that will do large diameter bearings and hub packages for racing HQ's

If you are going to go for a live axle style hub, then the easiest option might be to find something of a Toyota Land Cruser / Prado, Nissan Patrol or the like. These typically have a 6 x 140mm ish PCD, which is a lot larger. I have not checked if this will work, my thoughts are that as its a 6x pattern it should be possible to put another PCD pattern in-between the existing bolt spacing, just rotated 30°?

The larger heavier 4wd with their large tires and weights typically have stout drive axles and CV joints, so those could also work, especially if you are not going after an exact replica (MK IIs had CV joints if that helps, ).

Ryan in Melbourne.

 

[Julian]

ERA use an original 6 pin drive hub

 

[Mark Winton]

ERA use an original 6 pin drive hub

Thanks Julian ... I will give them a call ...

 

[Mark Winton]

Mark, the originals used a live hub design that rotates inside a large bearing that was held stationary within the upright casting. This is a different design to that which most OEM early double A arm front knuckles used, EG Cortina/Gemini/MX5/Jaguar/HQ holden ect. (stuff commonly available in Australia)

If you are going to use one of those typical knuckles, you would need to seek out an undrilled trailer hub to mount onto the stub axle and try and make a bearing fit. There are places that will do large diameter bearings and hub packages for racing HQ's

If you are going to go for a live axle style hub, then the easiest option might be to find something of a Toyota Land Cruser / Prado, Nissan Patrol or the like. These typically have a 6 x 140mm ish PCD, which is a lot larger. I have not checked if this will work, my thoughts are that as its a 6x pattern it should be possible to put another PCD pattern in-between the existing bolt spacing, just rotated 30°?

The larger heavier 4wd with their large tires and weights typically have stout drive axles and CV joints, so those could also work, especially if you are not going after an exact replica (MK IIs had CV joints if that helps, ).

Ryan in Melbourne.

Thanks Ryan ... Your thinking is aligned with my own. One of my options is to use a Y62 Nissan Patrol Axle | CVJ | Wheel Hub assembly. This is because the Y62 axle has a 6 bolt inner (diff) flange which will have a level of compatibility with the Porsche G50 output shaft flanges that I am using. Secondly I like the Y62 Hub | Wheel Bearing unit which will bolt to my bespoke upright. Lastly, the Y62 has a 6 bolt stud pattern which will be so much easier to match to the 6 x Pin BRM wheels. This is shaping up as a good option. The Y62 has 560Nm torque rating - so the axles and CVJ's should be ok with what my Ford 5.4 liter can pump out.

 

[Lee Patterson]

I would call Gelscoe

GM Automotive Engineering Ltd - Ford GT40 Parts UK

gt40partsuk.com

or GOX-USA

Both have original parts being reproduced

 

[Morten]

Gelscoe ones are only £8k a corner if they are willing to sell any.
Then you need all the other hardware to suit.

 

[Ron McCall]

PM sent.


Ron

 

[colin artus]

They all get their hubs from these people

Hubs | Orson Equipment

 

[Morten]

Nice, you still need the uprights to fit the hubs into, machining, bearings to suit, drawings for the machining if the uprights are raw, heat treatment, clevis pins, suspension arms with the bearings…. Its long list with bits needed.

Photo of some of mine for a monocoque.

Another option could be AK Sportscars if they can supply any 6 peg uprights for you.

Good luck

 

[Ole Nylende]

They all get their hubs from these people

Hubs | Orson Equipment

Im pretty sure that neither gox or gelscoe get their hubs from those people.... Those who run bolt on adapters is a different story

 

[colin artus]

Actually they do; they are not listed in the products section because the supply is contracted to various retailers.

 

[Morten]

The question then is: will they sell hubs to individuals or are these hubs contracted to the company who possibly supplied the fabrication drawings and bound by a no sale clause as most of this industry is by protecting their investment.

 

[Ron McCall]

I have an original GT40 part that I would definitely sell if someone was interested.

Ron