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Master cylinder question

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Old Apr 18, 2004 | 10:47 PM
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Default Master cylinder question

Help me out guys, I am on the verge of ordering a new clutch and was going to order a new slave as well since I have a 2000, however the vendor just stocks a hydraulic upgrade kit which includes the master and slave. I had been told in the past that only the slave had been changed and that there was not an issue with the 2000 master. However when I looked it up on the GM Parts Direct catalog, sure enough, the master for the 01's and 02's is different than the 2000. What the hell did they change, and is it critical enough to warrant changing it. Honestly, if I do need to change it, I would consider spending an extra $100.00 and going with the McLeod master, but one of the advantages of going with the Spec was that supposedly that is not needed. Do any of you know what GM changed other than the part#?
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Old Apr 18, 2004 | 11:07 PM
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Im not sure what was changed but, you might want to consider having an adjustable master.
Be it stock modified a McLeod or other that is a nice feature to have.
I've had good luck w/ my Mcleod.........
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Old Apr 19, 2004 | 12:16 AM
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anyone else have any ideas??? I was considering making my stock one adjustable, but that would be cheap compared to the $260.00 the vendor wants for the "hydraulic upgrade kit". I need to find out if this kit includes anything other than the master and slave kit. Buying those two items from GM Parts Dirct would only cost $170.00 + shipping.
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Old Apr 19, 2004 | 08:28 AM
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well i found this out after i put my tranny back in... there is no way you can get a 00 slave and 02 master to lock in the quick release, i got my slave from gmpartsdirect.com and it came like in 3 days, i paid 100 and some cents for it
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Old Apr 19, 2004 | 01:25 PM
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What are the part numbers for both the master and slave cylinders from the 01-02 cars?

i'm wanting to change them both over to the new stuff.
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Old Apr 19, 2004 | 07:54 PM
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Originally Posted by WS6TransAm
What are the part numbers for both the master and slave cylinders from the 01-02 cars?

i'm wanting to change them both over to the new stuff.
The 02 master cylinder part# is 12565144, and they only have one slave cylinder listed and that # is 12565145. These are the numbers I got from the GM Parts Direct online catalog, they are different than what SDPC shows for some reason.
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Old Apr 19, 2004 | 10:22 PM
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alright, thanks for the info!
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Old Apr 19, 2004 | 10:26 PM
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..just checked those numbers and the master cylinder number you gave me says its for V6 only.. is there a difference?
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Old Apr 20, 2004 | 08:35 PM
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I'm in the same situation.

Master-12570277

Slave-15046288

GM PART # 12570277
CATEGORY: Hydraulic Clutch Main Cylinder/Rod
PACK QTY: 1 CORE CHARGE: $0.00
GM LIST: $171.86
OUR PRICE: $97.96
DESCRIPTION: CYLINDER


GM PART # 15046288
CATEGORY: Clutch Slave Cylinder/Actuator
PACK QTY: 1 CORE CHARGE: $0.00
GM LIST: $147.08
OUR PRICE: $83.84
DESCRIPTION: CYLINDER


Last edited by 1ScrudeDude; Apr 20, 2004 at 08:43 PM.
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Old Apr 20, 2004 | 11:57 PM
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i thought the slave was considered the "145" upgrade for the 00 master/slave.. those last set of numbers for the slave isn't correct if thats so...??
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Old Apr 21, 2004 | 12:30 PM
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Originally Posted by WS6TransAm
i thought the slave was considered the "145" upgrade for the 00 master/slave.. those last set of numbers for the slave isn't correct if thats so...??

I just spoke with Paul at Spec Clutches (205) 491-8581; he said these part numbers are necessary for their clutches:

15046288 slave
12570277 master

Last edited by 1ScrudeDude; Apr 21, 2004 at 04:09 PM.
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