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Thread: More 4-to-5 stud hub conversion data

  1. #1
    Junior Member Too Much Toyota
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    Default More 4-to-5 stud hub conversion data

    Further to my posts in RAd28's thread about hub and brake upgrades for RA23/38/40 - i've done some more cross checking with the SKF catalog and wrecker-year data that Wilbo and I have pulled together.

    There's a lot of gaps (anyone know anything about Nissan 260C hubs and lots of guesses about offset are needed)... but what i have discovered is that the Volvo 240 hub might have been a winner - but it's PCD is 5 x 108 and it needs confirmation of the bearing code.

    THE STUB AXLE

    Toyota Supra/Corona
    MA61 / RT142 / RA40 / XT130 ...

    (Inner bearing face)
    31.75mm

    (Outer bearing face)
    19.05mm

    gap between bearings: 43mm


    THE HUBS

    4-stud Toyota Supra/Corona
    MA61 / RT142

    bearings (Inner)
    LM67048 (ID 31.75mm, OD 59.131mm)

    bearings (Outer)
    LM11949 (ID 19.05mm, OD 45.237mm)


    Volvo 240 (10/81)
    (non-standard bearings to adapt to hub & stub)

    bearings (Inner OD 59.131mm or 59.947 - L68149/110/Q or L68149/111/Q)
    -If 1st code
    LM 67048/010/Q (ID 31.75mm, OD 59.131mm)
    or
    LM67048 (ID 31.75mm, OD 59.131mm)
    no machining required

    - If 2nd code
    15123/15243/Q (ID 31.75mm, OD 61.912mm)
    2.781mm oversized - requires hub machining

    bearings (Outer normally OD 45.237mm - LM12749)
    LM11949 (ID 19.05mm, OD 45.237mm)
    no machining required

    WRONG PCD (5 x 108)
    gap ??
    offset: ~20mm


    5-stud Toyota Crown
    (1983-85)
    (non standard bearings to adapt to hub & stub)

    bearings (Inner)
    15123/15243/Q (ID 31.75mm, OD 61.912)
    (1.938mm in diameter over sized - hub machining required)

    bearings (Outer)
    09067/09195/Q (ID 19.05mm, OD 49.225)
    (3.251mm in diameter over sized - hub machining required)

    gap between bearings: 43mm
    offset similar to stock


    5-stud Falcon 500 ute
    (feb '72)
    (fits with standard bearings)

    bearings (Inner)
    LM67048 (ID 31.75mm, OD 59.131mm)

    bearings (Outer)
    LM11949 (ID 19.05mm, OD 45.237mm)

    gap between bearings: under 42mm
    offset worse by ~8mm


    4-stud Datsun 260Z
    (fits with standard bearings)

    bearings (Inner)
    LM67048 (ID 31.75mm, OD 59.131mm)

    bearings (Outer)
    LM11949 (ID 19.05mm, OD 45.237mm)

    gap 43mm (approx)
    offset: ???
    note: oil seal set >10mm inset into rear of hub


    Mitsubishi Express
    (March '94)
    (try to use non standard bearings to adapt to hub & stub)

    bearings (Inner normally OD 65.088mm - LM48548)
    HM 88542/510/Q ID 31.75, OD 73.025)
    (7.937mm oversized - significant hub machining required)

    bearings (Outer normally OD 50.005mm - M12649)
    no bearing available with suitable OD

    gap ~41mm
    note: centre bore of outside of hub 66-67mm
    offset: ???


    Hilux 2WD
    YN57
    (try to use non standard bearings to adapt to hub & stub)

    bearings (Inner normally OD 65.088mm - shell LM48510, bearing LM28547)
    HM 88542/510/Q ID 31.75, OD 73.025)
    (7.937mm oversized - significant hub machining required)

    bearings (Outer normally OD 50.005mm - shell M12610, bearing M12647)
    no bearing available with suitable OD

    gap 39mm
    offset: ???


    Nissan 260C

    bearings (HR30304BJ)
    cannot find bearing data

    bearings (R32-4B)
    cannot find bearing data

    gap ??
    offset: ???

    updates most welcome.

    cheers,
    Charles
    Last edited by thechuckster; 19-01-2006 at 10:05 PM. Reason: updated to correct error with volvo hub

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