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Cars > Forums > Tech Garage > Switching to rear disk brakes


Forum: Tech Garage

  • Topic: Switching to rear disk brakes
  • Started by Himeko Nov 26, 2007 at 3:43 pm
  • Last post by rupam2009 Nov 20, 2008 at 9:33 am
  • This topic has been viewed 925 times and has 2 replies
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Topic: Switching to rear disk brakes

Forums > Tech Garage > Switching to rear disk brakes

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  1. #1 Nov 26, 2007 at 3:43 pm

    Himeko’s Profile Photo
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    I have a 1990 Celica GT 2d liftback. I've been wanting to swap out the rear drum brakes for disk ones. I have the rotors, calipers, and pads, but I'm not exactly sure what else I need to do the swap. If could help me out by telling me what all I would need to get I'd appriciate it^^ Thanks!


  2. #2 Oct 20, 2008 at 5:03 pm

    Old_school’s Profile Photo
    Total posts: 2
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    Not as easy as it sounds. You will need an adapter plate that will attach the caliper to the axle and hold it very firmly in just the right position. Unless you are a machinist, it is safer to buy one, if there is indeed one available for your model car. You must also ensure that the rotors will fit onto the rear hub. You may need to fabricate some kind of spacer if the rotor sits too deeply over the hub.
    If your car does not have a brake proportioning valve (it should have one already), then you will have to splice one into your brake line. It regulates how much hydraulic pressure is sent to rear versus front brakes - the rear brakes will lock up much more quickly than the front (this usually results in crashing), thus they require quite a bit less hydraulic pressure compared to the front.
    Finally, you will need some way to make the calipers work with your parking brake. If you are using calipers from the rear of another car, there will be no problem - just attach your existing parking brake cable to the levers on the calipers. If the calipers are from the front of another car, then they will probably not be suitable for use with a parking brake cable. You will have to install a hydraulic parking brake system - these can be bought. They are essentially a manually operated/locking button that makes use of existing rear brake lines. They are universal and can be installed on any vehicle. If its not too late to change your plans, you will experience a more dramatic increase in braking effectiveness by upgrading front brakes with the largest vented rotors that you can fit/afford and multi-piston calipers than by upgrading the rear drums.


  3. #3 Nov 20, 2008 at 9:33 am

    rupam2009’s Profile Photo
    Total posts: 1
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    The disc brake or disk brake is a device for slowing or stopping the rotation of a wheel. A brake disc usually made of cast iron or ceramic composites is connected to the wheel and/or the axle. To stop the wheel, friction material in the form of brake pads is forced mechanically, hydraulically, pneumatically or electromagnetically against both sides of the disc. Friction causes the disc and attached wheel to slow or stop.
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Forums > Tech Garage > Switching to rear disk brakes


Cars > Forums > Tech Garage > Switching to rear disk brakes

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