Thread: D2/P38a hubs for braked axles.

Hi Diana,
The new Defender still uses the original PCD of the early Defenders & Disco1.
I havent heard of any changes through work that a change will happen.

Hope this helps in some way

Originally Posted by Lotz-A-Landies

Hi Guys.

Does anyone have contact with ALKO industries or a similar iron foundary/machining organisation.

With the 2008 Defender moving to the P38a/DII PCD the problems of alloy rims and braked axles on heavy camper trailers is going to become an ongoing problem.

I wonder if there would be a market for a modified ALKO parrallel bearing hub/drum assembly that had a spacer to suit the DII rim cast into it.

What I am imagining is a drum that has the wheel backing plate flush with the outside face of the hub. It would sort of look like a ventilated disk stuck to the outside of the drum. Being part of the casting it would not constitute a spacer and therefore be legal in Australia. It would require special longer studs for the extra thickness of the hub and require special flush bearing caps or even a machined screw in hub centre cap.

The wheel would locate on the 5 studs (and the special hub cap).

Possible or not?

Diana

Originally Posted by sniegy

Hi Diana,
The new Defender still uses the original PCD of the early Defenders & Disco1.
I havent heard of any changes through work that a change will happen.

Hope this helps in some way

You know I was sure I saw the smaller PCD on one of the new Defender 110's - but hey I must be wrong.

However the RR Sports and the D3s still use the 125mm PCD so the question about special hub/drum castings remains.

Cheers
Diana

Originally Posted by Lotz-A-Landies

You know I was sure I saw the smaller PCD on one of the new Defender 110's - but hey I must be wrong.

However the RR Sports and the D3s still use the 125mm PCD so the question about special hub/drum castings remains.

Cheers
Diana

The D3/RRS use a 120PCD Diana, same as the D2/P38a/Commodore/BMW X5.

Baz.

It begs the question whether spacers are illegal on trailers.. do ADRs apply to trailers?

Apparently adapters are legal. There's one website I know of that's changed its description from spacer to adapter, a bit moot I know.

If its legal it'd be an easy way out.

Regards
Max P

Good Luck!!!
I spoke to the National sales mangager of ALKO about them not providing metric studs for Rover classic parallel hubs when Rovers had been metric since Adam was a Boy and metric is needed for mags.
His answer was that ALKO were in the trailer business which was different from the car business, and they saw no reason that they should change from UNF.
They are unbelievably insular, which I guess happens when you have a virtual monopoly.
Regards Philip A

Originally Posted by PhilipA

Good Luck!!!
I spoke to the National sales mangager of ALKO about them not providing metric studs for Rover classic parallel hubs when Rovers had been metric since Adam was a Boy and metric is needed for mags.
His answer was that ALKO were in the trailer business which was different from the car business, and they saw no reason that they should change from UNF.
They are unbelievably insular, which I guess happens when you have a virtual monopoly.
Regards Philip A

Oh for the days of the Metric Conversion Board (1970 to 1981).

In the 1970's and early 1980's it was illegal to manufacture and sell items in Australia that had imperial or US measurements or fasteners.

UNF, UNC and AF/SAE were only to be supplied for items manufactured outside of Oz or for the repair of older equipment.

Surely the Japanese and European makes are so dominant in Oz that they should have to change. Why make a Land Cruiser a standard hub when they aren't using Land Cruiser standard metric fittings? It makes no sense!

Diana

Hate metric fasteners. As an old fitter-machinist, I regard NF & NC as the superior thread systems. Sale of taps and dies are the major part of my business, and inch system tools still outsell metric by probably three to one. I imported a few No.4 machinist rules in 6", 12", 18" 24" to test the waters. You have not been able to buy these in Oz for years as rules are supposed to be pure metric or bi-lingual. These ones were inch measure rigid stainless steel rules with No.4 graduations, one side each in 1/8", 1/16", 1/32", 1/64". They sold in the blink of an eye. I buy a few from time to time and they still sell quickly. Should stock them.

Of the many metric systems, the only one with legal standing and a standard is ISO Coarse. Others known to me are French Metric, French Automotive, Swiss Horological, Swiss Industrial, German DIN, Swedish Marine Engineers Institute. The only saving grace is they all use the same 60 degree thread form. There are as many as five or six thread pitches in reasonably common use in some metric diameters. 12mm is a horrible example. I stock 12mm taps and dies in 0.75, 1.0, 1.25, 1.5, 1.75 pitch. People get into the bad habit of not specifying the pitch when ordering metric fasteners or cutting tools, just say M12 or M10, not 12mm x 1.75 or 10mm x 1.5.

I have always found that since forced metricisation, industry in general has tried to ignore metric systems except where unavoidable.

When Qld TAFE colleges put the first prevoc. students who had been through the education system purely in metric out into the workforce for work experience, they had to call them back for a crash course in inch measure. no one in industry was talking or using metric unless they had to. Still the case. How often do you hear the tolerance or clearance on say a 20mm shaft expressed as thousandths of an inch? Answer? Regularly.

Originally Posted by Brian Hjelm

Hate metric fasteners. As an old fitter-machinist, I regard NF & NC as the superior thread systems. Sale of taps and dies are the major part of my business, and inch system tools still outsell metric by probably three to one. I imported a few No.4 machinist rules in 6", 12", 18" 24" to test the waters. You have not been able to buy these in Oz for years as rules are supposed to be pure metric or bi-lingual. These ones were inch measure rigid stainless steel rules with No.4 graduations, one side each in 1/8", 1/16", 1/32", 1/64". They sold in the blink of an eye. I buy a few from time to time and they still sell quickly. Should stock them.

Of the many metric systems, the only one with legal standing and a standard is ISO Coarse. Others known to me are French Metric, French Automotive, Swiss Horological, Swiss Industrial, German DIN, Swedish Marine Engineers Institute. The only saving grace is they all use the same 60 degree thread form. There are as many as five or six thread pitches in reasonably common use in some metric diameters. 12mm is a horrible example. I stock 12mm taps and dies in 0.75, 1.0, 1.25, 1.5, 1.75 pitch. People get into the bad habit of not specifying the pitch when ordering metric fasteners or cutting tools, just say M12 or M10, not 12mm x 1.75 or 10mm x 1.5.

I have always found that since forced metricisation, industry in general has tried to ignore metric systems except where unavoidable.

When Qld TAFE colleges put the first prevoc. students who had been through the education system purely in metric out into the workforce for work experience, they had to call them back for a crash course in inch measure. no one in industry was talking or using metric unless they had to. Still the case. How often do you hear the tolerance or clearance on say a 20mm shaft expressed as thousandths of an inch? Answer? Regularly.

Do all the metric nuts unscrew like the SIII metric ones are prone to do?

Diana