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Thread: 5 stud conversion

  
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    kyle_sxi's Avatar
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    Thumbs Up 5 stud conversion

    does anybody know where i could get the stuff from to do a 5 stud conversion and a rear brake conversion on my astra sxi 1.6 52 plate could they send me a link please how much am i looking at
    astra coupe bertone on 18" pro race 1.2s now on coilovers

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    can you get kits to do this??? wouldnt mind looking into it myself
    Golf R32 Onwer in DBP!!!!

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    don't you just need a complete rear beam from a 5 stud astra? and something for the handbrake. Geoff will be along in a sec i expect, to shoot me down
    Coupe now being broken for parts
    You know the one

    Enquire within


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    give vpsc a ring tomorro on 01255 670 670 it will 2nd hand bits but sure he will be able to help you out
    courtney stage 3 zafira,Mitsubishi evo geek mapped to 389 and 470 lb of torque

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    thanks for the help lads
    astra coupe bertone on 18" pro race 1.2s now on coilovers

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    best off doing a search mate - its been covered numerous times.

    The man u really need to speak to is Dannysport18 - fairly straightforward job and prices can be found on one of the threads on a search.

    Also, why is it u want to do a conversion? If its just so u can have rear discs then this isnt required - some 4 stud models came with rear discs so this can be done even cheaper, also u can up ur front stoppers to bigger discs if u so wish with 308s being a common upgrade (if a little costly lol)

    just remember if u go for a 5stud conversion youll need to budget for new 5stud wheels.

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    i want the conversion mate not only for the 308mm brakes but also want to try and get hold of some sri-t wheels after then some time when i get more money im gonna get the z20let conversion so ill have the stopping power thanks for the help mate
    astra coupe bertone on 18" pro race 1.2s now on coilovers

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    DAZOCA's Avatar
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    Thanks for starting this thread. Also looking how to convert my 4stud hubs to 5stud on the sxi......Cos i want snowflakes eventually

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    A search for stud+conversion+guide brings this up



    This is a guide to show you whatís involved to convert your Astra mk4 to five stud hub's and wheels.
    • If you have four stud rear disks (1.8 non ABS)
    Its a simple job, you can switch to the larger front, rear disks and hubs from a five stud car.

    You will convert your standard front disks from 256mm, up to a larger 280mm or 308mm disks. And your rear disks from 240mm, to a larger 264mm

    You will need for the front:-
    2 x 5 stud front hubs
    2 x 5 stud front hub carriers
    2 x 5 stud front 280/308mm disks and pads
    2 x 5 stud front calipers and brackets

    You will need for the rear:-
    2 x 5 stud rear hubs
    2 x 5 stud rear hub carriers
    2 x 5 stud rear 264 disks and pads
    2 x 5 stud rear calipers and brackets

    And you'll also need some extra wheel bolts!
    • If you have four stud rear drums
    Itís a bit more complex, the smaller engine Astra's have smaller drive shafts, so the shafts wont fit into the hubs at the front. Your best bet is to source some four stud rear disks from a 1.8 Astra SXI, some of these are four stud and have rear disks, meaning you get better brakes and rear disks, but keep your four stud. (if any one knows of a five stud smaller diameter front hub let me know - it may be possible a mk5 hub fits?) Someone let me know about the diesels driveshaft diameter


    Anyway, back to the fitting of the front hub and disk from a five stud car. (to a car with rear disks)
    1. Jack up the front of the car, secure it with and axel stand and remove the wheel Photo
    2. Now, if you donít have access to an air gun, I'd recommend you undo the hub nut first, someone can sit in the car and hold the brakes on while you undo the hut. Pull out the center hub dust cover with a screwdriver or similar object, remove the split pin and undo the castle nut, take care to not loose the washer. Photo Photo
    3. Remove the brake hose, but remember to clamp the brake pipe so as little fluid as possible is lost.
    4. Remove the brake caliper, there are two allen key bolts around the back of the caliper, they have plastic covers over them that simply pull out. Once these are out, the caliper and pads should come away from the disk. Photo
    5. Remove the disk securing screw, itís a small torx bolt on the front face of the disk, then pull off the disk.
    6. Now you've got to remove the bolts at the top that hold the strut to the hub carrier, undo these but leave the bolts in the holes so the whole thing doesn't fall off until you remove the driveshaft.
    7. Remove the steering track rod end, now, if the threads are all rusty, clean them up first, as if the nut is difficult to remove, the whole ball joint will just turn round, which makes it a right ballache to remove! I use a drill with a wire brush attachment, make sure its got no rust on the threads at all. Once the nuts off, use a ball joint separator, or just hit it with a big hammer to release it from the hub carrier
    8. Now remove the lower pinch bolt, it under the driveshaft. Photo
    9. Now its time to remove the driveshaft, set up a hub puller on the bub and tighten it until the shaft comes free Photo
    10. Move the shaft to one side, and remove the two strut bolts, then release the lower pinch bolt by opening up the gap until the hub carrier comes free. Now the hub carrier and hub should be free Photo Photo
    11. Now its a simple case of putting the bigger 5 stud hubs and disks on. See the following photos for a few pointers
    12. The new hub carrier and hub ready to bolt on
    13. The new 5 stud hub and carrier in position, the drive shaft is back in place
    14. Torqueing up the front hub nut
    15. Caliper and bracket, 308mm disk all added
    16. Five stud wheel on, job done!
    Now, I went for the turbo spec 308mm front setup, but there is no reason why you cant opt for the standard five stud 280mm disks.

    I'll cover the rear in a bit... Although its pretty simple compared to the front

    This is a GUIDE only, and I can't be held responsible for any problems you might encounter, including damage to yourself or car
    Been apart of the inner circle since 2001
    Click Me to Join Astra Owners Club Full or Lite Members

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    Ive just read through a load of old threads to read up on this, as i want to convert to 5 stud and rear discs on my 2000 x reg sxi. sent a pm to dannysport as martin mention,cheers mate. i seen one picture from a Mr sjflat and it got my mind set!!!!

    cheers for that Mat!!!
    Golf R32 Onwer in DBP!!!!

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