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Axle swap for a 1991 firebird.

This is a discussion on Axle swap for a 1991 firebird. within the Firebird / WS6 forums, part of the Vehicle Specific category; Helping my son with his axle swap. First of all, this bird is a 1991 firebird T-top with 5.0 TBI, ...

  1. #1
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    black
    2000 z28 conv.

    Axle swap for a 1991 firebird.

    Helping my son with his axle swap.
    First of all, this bird is a 1991 firebird T-top with 5.0 TBI, auto, with rear brum brakes. The only up grade we did is add a 6 AL MSD ignition box with matching MSD coil. And now time to do the axle. The one in the car is making a whining noise.
    Anyway, this replacement axle has disc brakes, not drum brakes. all the pices are their for a disc set up. Do we need to change the master cylinder and/or proportioning valve? Or will it not matter? Will it just bolt in?
    Last edited by zdude; 02-06-2006 at 11:36 PM.

  2. #2
    899
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    the praportioning valve is different call the nearest junk yard for swap info the only thing is u might have to put a manual praportioning valve on witch is a hole lot better anyways .

  3. #3
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    proportioning valve is different i believe, master cyclinder shouldnt matter.

    runs searches on www.thirdgen.org
    Pontiac Firebird's: 91 Formula 350, 01 Trans Am WS6, Suzuki's: 09 SX4 Crossover, GSX-R's: 06 600 & 07 1K.
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  4. #4
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    black
    2000 z28 conv.

    Thanks for the input. Well just found out axle is not posi. Oh well up grade later.
    Any GM part #'s for the valve? A manual valve? Is this available from bear brakes?
    Just want to make sure this bird will stop. My son has a lead foot.

  5. #5
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    just get used parts, hawksthirdgen certainly has some, maybe try www.thirdgen.org

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