Results 1 to 9 of 9

Thread: mk3 astra brake upgrade?

  
  1. #1
    Status
    Offline
    kristiaan_d's Avatar
    AOC Newbie
    Join Date
    Dec 2009
    Posts
    59
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)

    Question mk3 astra brake upgrade?

    hey guys, after some advice on upgrading the brakes on my 1.4 astra.

    at present its got solid discs on the front and drums on the back, to say there awful is an understatement in my opinion, what i would like to-do is change them over for vented discs and change the drums for discs.

    is this possible to-do using standard parts (dont wanna spend out on big disc kits). ive been offered a front and rear set of vectra brakes if i want them for next to nothing and was wondering if they would fit?


    any advice would be good or suggestions on how to-do it.

    cheers
    kris
    Brute Force : if its not working, your not using enough.

    Op-Com Fault diagnosis available aberdare - cardiff area.

  2. #2
    Status
    Offline
    kristiaan_d's Avatar
    AOC Newbie
    Join Date
    Dec 2009
    Posts
    59
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    quick daytime bump
    Brute Force : if its not working, your not using enough.

    Op-Com Fault diagnosis available aberdare - cardiff area.

  3. #3
    Status
    Offline
    DaveDempsey's Avatar
    AOC Obsessed
    Join Date
    Feb 2004
    Posts
    9,365
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    You can use Vectra rear hubs to convert it, but you will need to reem out the centre hole on the rear beam to allow them to fit. Far better option is to get a complete rear beam from the likes of a Sport/GSi and swap it over.

  4. #4
    Status
    Offline
    kristiaan_d's Avatar
    AOC Newbie
    Join Date
    Dec 2009
    Posts
    59
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    Hi dave,
    thanks for the reply about this will have to have a poke around my local scrappies see what's on offer.

    don't suppose you have any suggestions on converting the front brakes?
    Brute Force : if its not working, your not using enough.

    Op-Com Fault diagnosis available aberdare - cardiff area.

  5. #5
    Status
    Offline
    R16 JCD's Avatar
    AOC Newbie
    Join Date
    Sep 2008
    Posts
    8
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    hi mate,

    probably one of the easiest options for a brake upgrade imo is to get the 256mm ones on the fron t and the rear disc hubs,

    the rear hubs can be got from any mk3 astra sport or gsi or as said just swap the whole axles and you dont have to worry about the handbrake cable guides,

    for the fronts, the 256mm brakes are whats commonly known as 16v brakes, these are found on the astra mk3 gsi, calibra 2.0, cavalier 2.0 and some others iirc,

    with these they are just bolt straight on, no boreing out holes etc,
    if you fancied going 5 stud, cavalier turbo or v6 will give you the 5 stud hubs and also larger brakes,

  6. #6
    Status
    Offline
    Colonel-White's Avatar
    AOC Regular
    Join Date
    Jan 2010
    Posts
    160
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    I have done the front brakes myself & im about to change the rear drums out for discs.

    The fronts are litterally 4 bolts and brake hose both ways!!

    With the rears I have been advised that you need to change the rear brake compensator as leaving it for the drums would mean that the rear brakes would work harder then they need to.

    When doing a rear disc conversion you need to change the handbrake cable for one from a disc brake car.

    Look at big block (1.6 upwards NOT Diesels!) astras, Vectras (not V6), Calibras (not V6), that should cover it all.

    Here is what the brakes should look like.



    And closer



    Make sure they look like that (just without the grooves)
    I am the South Central Co-ordinator for the MK3OC

    Now have a project thread up!! [smile]Check it out[/smile] HERE

  7. #7
    Status
    Offline
    Daryl_mk4 coupe's Avatar
    AOC Fanatic
    Join Date
    Nov 2007
    Posts
    408
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    Hi chap,i did this twice a while back. I found it far easier to just swap the whole rear beam over,as its only 2 bolts for the beam,and 2 more for the dampers. The handbrake tensioner bracket on the disc beam is different,and i found it far easier to just swap the whole lot over. If your lucky and get a GSI rear beam, (I know of one for sale) then you will have the anti roll bar attached to it. This improves the handling no end. Any probs just shout.
    REDBULL F1

  8. #8
    Status
    Offline
    Colonel-White's Avatar
    AOC Regular
    Join Date
    Jan 2010
    Posts
    160
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    Quote Originally Posted by Daryl_mk4 coupe View Post
    Hi chap,i did this twice a while back. I found it far easier to just swap the whole rear beam over,as its only 2 bolts for the beam,and 2 more for the dampers. The handbrake tensioner bracket on the disc beam is different,and i found it far easier to just swap the whole lot over. If your lucky and get a GSI rear beam, (I know of one for sale) then you will have the anti roll bar attached to it. This improves the handling no end. Any probs just shout.
    Need to change handbrake cable at the same time.

    Have a GSI rear beam sat in my back garden waiting to go on, got it for free
    I am the South Central Co-ordinator for the MK3OC

    Now have a project thread up!! [smile]Check it out[/smile] HERE

  9. #9
    Status
    Offline
    Daryl_mk4 coupe's Avatar
    AOC Fanatic
    Join Date
    Nov 2007
    Posts
    408
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    Sorry i forgot about that. ^^^^^
    REDBULL F1

Similar Threads

  1. brake upgrade astra mk4 gsi?
    By paul gsi in forum Chassis
    Replies: 8
    Last Post: 01-04-2009, 01:54
  2. LMF Astra G Brake Upgrade Kit
    By Dav in forum Chassis
    Replies: 6
    Last Post: 24-11-2006, 08:49

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •