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Thread: Legality of aftermarket 17" rims for D3

  1. 27th August 2009, 08:52 AM #1
    solarstabi Guest

    Legality of aftermarket 17" rims for D3

    Note that ADRs & VicRoads in Victoria state that wheel nuts must engage "at least the same number of threads as original"; National ADRs: "same number of threads as stud diameter".
    For a D3, this means that 14x1.5mm studs, original wheel nuts engage ~9 turns, or 13.5mm. Replacement rims & nuts must engage about 9 turns or more.
    So 17" Dynamic steel rims are o.k., but Performance BB6 alloys are not - the nuts only engage 6 turns, or 9mm.
    I've confirmed the amount of nut engagement with Performance BB6 17x8" & BMW X5 17x7.5" Wheels.
    I think many people don't realise that wheel studs on a D3 are so short that you only get 9mm of nut engagement.

    So OEM 7" rims, or Dynamic steel rims, are only legal ones out there, that I have found so far.
    BTW, Kings did a 17x8" steel rim. Marginal on scraping brake caliper (so not legal in Vic), so they decided to stop offering them to D3s.
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  2. 27th August 2009, 06:18 PM #2
    Graeme
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    I bought some (8!) BMW 17x7.5 for use on a D3 but would not fit them as-is due to insufficient stud length - only 5-6 turns. I planned to have the holes drilled to use D3 nuts although a 6mm washer would have to be used as well as they are thinner.
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  3. 27th August 2009, 06:51 PM #3
    TDV6
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    Thats one thing that I didnt check, all else is ok.

    Ryall
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  4. 27th August 2009, 07:40 PM #4
    TDV6
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    While I still haven’t checked mine by what happens while on the car, most Performance 17x8 alloy rims were 38mm positive offset while my rims are 45mm positive offset an extra 7mm further inset closer to the engine.

    So 7mm plus the standard 9mm should give me heaps over the 13.5mm of engaged thread making my rims legal in VIC as well as QLD which dosent have this requirement as far as I know.

    I will check the thread turn count over the weekend to confirm.

    Ryall
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  5. 27th August 2009, 08:27 PM #5
    RickO
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    Dynamic 17" aftermarket rims for the D3?

    'Evening All,

    Has anyone got experience with the Dynamic 17" aftermarket rims for the D3?

    If so, what tyres are you running - did you go the Grabber AT2 in 17"?

    Cheers,
    RickO
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  6. 27th August 2009, 09:44 PM #6
    CaverD3
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    I would not think it matters which whhel is used, it's just the nuts that have to be long enough.
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  7. 28th August 2009, 02:21 PM #7
    TDV6
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    Sometimes my theorising works out but in this case after putting one of my new BB6 45mm offset rims on the car, I found that I still had only six full turns of the wheel nut to fully tighten them.

    Ryall
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  8. 28th August 2009, 03:22 PM #8
    rmp
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    Where did this requirement come from, didn't see it on the VicRoads website?
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  9. 28th August 2009, 03:46 PM #9
    solarstabi Guest

    VicRoads Wheel Nut/Stud Requirements

    Rob, went down to VicRoads Oakleigh, & they printed a few pages from their website. I don't have the URL, but it is under:
    Vehicle Standards Information -> Guide to Modifications for Motor Vehicles (May 2003), Section 8 (Wheels & Tyres):
    "Wheel nuts must engage the thread of the wheel stud for at least the same length as the original wheel nut and have the same taper as the mating wheel stud hole." So in Victoria, if the OE nut engages 9 turns, the aftermarket nut must engage AT LEAST 9 turns.
    The ADR information (National) I got from 2 sources:
    1. Steve at Performance Wheels in Dandenong (verbal) - "nut must engage same length as diameter of stud (i.e. 14mm stud, 1.5mm pitch, must engage 14mm, or 14/1.5=9 turns (approx).
    2. Wheel alignment technician at LR Doncaster (name not known), copied some pages from his wheel/tyre training course notes. Says same as Steve told me.
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  10. 28th August 2009, 03:59 PM #10
    solarstabi Guest
    Caverd3, it's not the nut which has to be long enough, it's the stud.
    There is not enough D3 stud poking through a Performance alloy wheel's tapered nut-seat to allow more than 6 turns.
    Steve at Performance Wheels commented "LR D3 studs look shorter than I've seen on other 14x1.5mm studded cars" (e.g. Commodore).
    Could it be that LR deliberately fit short studs just so that you have to use their wheels & nuts? No...... that's just paranoia......
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