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vt/x/y/z rear brakes on vr/s solid axle

Discussion in 'VR - VS Holden Commodore (1993 - 1997)' started by markovr, Dec 24, 2013.

  1. markovr

    markovr Well-Known Member

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    not from this site but ive sold a few on ebay and I have a few hubs in the process of being modded that i will sell eventually.. problem is to get the hubs you have to buy the complete diff however I do have one full setup finished .....also Im trying to adapt something for my sons hq as well but ill get it on the road first.
     
  2. Vin999

    Vin999 Active Member

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    hey marko,, just wondering,, did you used to make/sell the modified rear vt brake booster brackets to fit into a vc/vh firewall in the gen2 to gen 1 brake upgrade conversion to the larger vt front disks ????
     
  3. markovr

    markovr Well-Known Member

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    yes i do ....i have a couple made up
     
  4. markovr

    markovr Well-Known Member

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    the actual bolt up hub/face is on the irs rear assembly/piece so you cant use the actual hub from these cars so to do it to a solid axle car you have to use a solid axle hub.
    Im obsessed with brakes as I hate to drive a car that cant stop as best as it can and always run with the thought that whatever I spend if it saves me from only one accident its worth it easily.
    An interest is a interest and who cares what people might say if it gives you enjoyment/sense of achievement and no one else loses anything just do it.
     
    Lex likes this.
  5. VPRob

    VPRob Active Member

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    Hey Marko,
    thanks for taking my remarks seriously and responding. I (largely) agree with you and mostly really enjoy my VP. It's a bit of an obsession to have everything work the way it should so that I can enjoy the limo feel and NOT feel like I'm driving an old rattler. I've sent you a message re your rear brake upgrade. Cheers, Rob.
     
  6. VPRob

    VPRob Active Member

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    Hi Marko,
    how much would you charge for the modded backing hubs and handbrake shoes for the rear brake upgrade?
    And Cuzzy, did you get the problem with the handbrake adjustment sorted?
     
  7. markovr

    markovr Well-Known Member

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    07vessv 94vr .04vz wgn,93vp wgn,82 vhV6 wgn 88 vn
    I have the same setup on my vp (and vr and vh)and I havent touched it since I put it in ...are you up to using your old handbrake springs/adjusters etc and all you want is the modded handbrake shoes and hubs?
     
  8. VPRob

    VPRob Active Member

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    Hi Marko, sorry for not replying sooner. I've been distracted by other things. Yes, I should be OK with the existing cable, springs adjustors etc as I use the handbrake frequently and it all works now. If I get the shoes and backing plates from you I would then just need to access VT rear calipers and pads to complete the job? Is that correct?
     
  9. markovr

    markovr Well-Known Member

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    Yes thats right any vt to vz calipers with hoses and discs will work ...you need to round off one of the points of the hex on the adapter end of the flexible brake hose you use where it attaches to the hard line so it keys into the retaining piece in your original backing plate/shield and trim slightly the metal where the new calipers (which is a little bit larger )edge just fouls on the backing shield
    If adjusted right the handbrake is better than the original one....it can be hard to get everything together ...springs and mounting hardware /shoes on the car with the axle installed....I just mount the handbrake shoes springs clips etc all on the hub off the car and take the axle out and changeover ....you have to push the shoes to each side to access the axle flange nuts.
     
  10. gtrboyy

    gtrboyy Well-Known Member

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    How much are these kits if still available?
     
  11. markovr

    markovr Well-Known Member

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    250 + post ....only have one set made up but I have all the parts...I’ve found the aftermarket hand brake shoes don’t fit as well over each other as the genuine ones so I use them
     
  12. VN_SS_CM

    VN_SS_CM Member

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    Hello Marko

    I have the same issue with my hand brake as cuzzy69 and cannot get it to work. Very tempted to try and adapt the banksia handbrake setup.

    New handbrake cable
    New modded shoes
    No change though I noticed the star adjuster its almost out of adjustment I need to wind it out alot for it to touch the inside
     
  13. markovr

    markovr Well-Known Member

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    2C51E094-0F23-47CF-BE86-FA714781539F.jpeg Can you send me some pictures ....I have never had this problem and I have done more than 15. My adjuster is hardly turned out from fully in and the handbrake locks the rear wheels when it’s pulled on.i use good FACTORY original secondhand vt-vz shoes and FACTORY vn style inner shoes as they fit over the top of one another with no air gap before they are welded together.
    I think the new aftermarket vt-z shoes have less metal on the inside so when welded together the shoe is too small.
    I only use good factory original secondhand shoes. First picture is a set of handbrakes shoes made up and second is a set assembled on the hub showing dimensions...adjuster at minimum
     

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  14. VN_SS_CM

    VN_SS_CM Member

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    Here is a pic marko as far I know it's factory.. i have backed off the cable and when you adjust it sometimes one side will lock up or when you reverse it grabs and bangs.....another one is you park on hill facing down and its its perfect but park uphill and the handbrake is useless and he lever is almost vertical lol
     

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  15. markovr

    markovr Well-Known Member

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    What dimension is it when its not applied ...if I attempted to put the disc on the studs and over the shoes with that much adjustment on the handbrake shoes I couldnt get it on simply because its way too big.....it should be a mill under 190 at rest .How did you set it up before welding .I assemble the old shoes (less the friction material)on the hub like it would be on the car at mininum adjustment and then put the factory vt style shoes over the top and see how the fit is and take a small amount off the inside of the vt shoes so there little to no air gap between the two and if needed wind on half a turn on the adjuster to take up any air gap ...sometimes you need it sometimes you don’t ...then after making sure they are perfectly square to each other ,weld them together in 4 places ,stopping every so often to cool it down so you don’t put too much heat in them.....after doing the 4 top welds I dissemble and take the shoes springs etc off the hub and weld the other side ...then I cut them at the top so now they are two shoes clean it all up so it looks good.
     
    Last edited: Mar 6, 2020
  16. VN_SS_CM

    VN_SS_CM Member

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    I measured mine and at rest it's 180mm.... I have a spare set of banksia shoes and the inside diameter is 153mm. How is your cable adjusted?
     
  17. VN_SS_CM

    VN_SS_CM Member

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    I measured my VT brake shoe to VN brake shoe and its 20mm like yours really wierd....I tried to adjust it just then and its either stuck on or dusk rotor drags and when you move it back and forward it clunks
     
  18. markovr

    markovr Well-Known Member

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    97A168E5-4B35-4D8B-B24A-71BFF0A70F01.jpeg 3B41FD4F-C096-4B13-8212-833B2373BD63.jpeg
    it gets adjusted at the u bracket where the single cable stud from the handbrake lever itself joins........ so at rest when its fully off theres just no freeplay in the cable
    the only other point is where the shoe sits on the bottom against the t bracket...that's the only thing that can change that at rest dimension
    Does your moded shoe look like this...especially the end that seats against the t bracket
     
    Last edited: Mar 7, 2020
  19. VPRob

    VPRob Active Member

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    Watching this with interest. Sounds like the problem is in the dimension of the shoes used to do the conversion: (Quote) "I measured mine and at rest it's 180mm.." Whereas Marko's are 190mm.
    That assembled difference of 10mm, or 5mm per side, is perhaps outside the adjustment range at the U bracket and, even if you can achieve the adjustment needed, maybe means the shoes aren't centred around the axle. In fact if you make that amount of adjustment at only 1 point the outside surface of the brake pads won't be anywhere near circular and so won't bear uniformly on the inside of the brake drum. Possibly could be solved, at least in theory, if the T bracket was modified to split the adjustment between the top and the bottom mounting points.
    That's my 2 cents worth.
     
  20. markovr

    markovr Well-Known Member

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    If the factory shoes are welded in the right place and the whole lot is assembled properly it can only change at the point where the shoes sit against the t bracket where the handbrake actuator lever sits above and it’s got to be a lot out ...the part that tapers on the vt shoes usually sits a couple of mill away from the end of the vn style shoe and doesn’t touch the t bracket at all.
     

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