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#1
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1980 4 Wheel Disc Proportioning Valve
Looking for a new Proportioning valve for a 1980 TA with 4 wheel disc.
All I see is the Brass type online. Anyone have a recommendations?
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66 GTO Nostalgia Super Stock/Street Legal Car 421 CID, stock block, Wenzler Intake, 2- Carter 750 AFB's, 3.90 Gears, Full Factory Interior, Full Exhaust, Stock Suspension 3750LBS 9.77@136.99 Multiple NSCA/NMCA World Champion 66 GTO 389 3x2, 4 speed, 4.33 gear, Montero Red 33K original Miles 67 GTO 2dr Post, 428, Tri Power, 3.55 Gears 80 Trans Am Black SE Y84 W72 WS6 |
#2
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What’s the part. number?
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#3
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Valve
Mike-
I had my original valve rebuilt. If you don't have your original unit you might try to buy a used one and have it rebuilt. I found in my research the new units will work but don't look like the OEM. If you have further questions, email me. glasic74@hotmail.com Jim |
#4
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A buddys getting 3 birds in to part out, if you can wait. Ones a 1980 recro ta.
I won’t mention names, no one seems to know the guys that are always at the Big swap meets ��
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🧩 Burds Parts, Finding those Hard to Find PCs, no Fisher Price Toys Here Just Say No To 8” Flakes pause pause F ire B irds 🇮🇱 |
#5
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Hunt an nOS one down.
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#6
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It’s the one I may buy the seats from.
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🧩 Burds Parts, Finding those Hard to Find PCs, no Fisher Price Toys Here Just Say No To 8” Flakes pause pause F ire B irds 🇮🇱 |
#7
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The original GM part number was 1257189. If you want the assembly line style, you will be very lucky to find one nOS or have to have an original used rebuilt by White Post. Even GM was selling the all brass ones as OEM replacements..
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1976 LeMans B09 Freeway Enforcer, 455/M40 Smokey 1977 Trans Am, 400/M21 Black/Gold Bandit. 44K actual miles 2017 Sierra SLT 1500 Z71 4X4 2019 Canyon SLT Crew 4X4 |
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#8
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I want to think the one I took off my 81 was all brass.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
#9
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Omg. It was a typo.
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🧩 Burds Parts, Finding those Hard to Find PCs, no Fisher Price Toys Here Just Say No To 8” Flakes pause pause F ire B irds 🇮🇱 |
#10
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original one on my low mile 1981 turbo is not brass.
personally, unless you are planning a 100% 3's matching correct resto i would just buy the repro brass one for ~$60 & paint it black if you dont like the brass look. or try & find a good used one that works or can be rebuilt. locating a NOS 4 whl disc prop valve might take awhile & will not be cheap. |
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#11
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I thought 1979 up was that brass one there. You can find them, this stuff isn’t rare.
I have an extra nOS for my 78. Coming to the parts this late, yes, your going to have to look. Try the usual suspects,
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🧩 Burds Parts, Finding those Hard to Find PCs, no Fisher Price Toys Here Just Say No To 8” Flakes pause pause F ire B irds 🇮🇱 |
#12
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not brass on my 81 low mile T/A. & cant say ive ever seen a brass one on the many 79-81 cars ive owned. might be a issue where they used them at certain assembly plants or only when they ran out of the iron ones?
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#13
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Back to orig question, why are you replacing, is it bad?
Flush it, plug the holes, bead blast it, paint it, I even went with Dot 5, just flush it out and re use. A nOS one is prob over 150$
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🧩 Burds Parts, Finding those Hard to Find PCs, no Fisher Price Toys Here Just Say No To 8” Flakes pause pause F ire B irds 🇮🇱 |
#14
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Quote:
Replacing entire brake system right now including MC, lines, calipers, rotors etc might as well put a new valve on while it's all apart.
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66 GTO Nostalgia Super Stock/Street Legal Car 421 CID, stock block, Wenzler Intake, 2- Carter 750 AFB's, 3.90 Gears, Full Factory Interior, Full Exhaust, Stock Suspension 3750LBS 9.77@136.99 Multiple NSCA/NMCA World Champion 66 GTO 389 3x2, 4 speed, 4.33 gear, Montero Red 33K original Miles 67 GTO 2dr Post, 428, Tri Power, 3.55 Gears 80 Trans Am Black SE Y84 W72 WS6 |
#15
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So Mike just saw a 80 W72?
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
#16
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pretty sure W72 was an option for the NA 301...
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#17
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Yes, 1980 WS6 W72 SE non T-top car. Bought it last summer and restoring it (minus the 455 thats going in) for a Dad/Daughter car to take to cruise nights and car shows.
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66 GTO Nostalgia Super Stock/Street Legal Car 421 CID, stock block, Wenzler Intake, 2- Carter 750 AFB's, 3.90 Gears, Full Factory Interior, Full Exhaust, Stock Suspension 3750LBS 9.77@136.99 Multiple NSCA/NMCA World Champion 66 GTO 389 3x2, 4 speed, 4.33 gear, Montero Red 33K original Miles 67 GTO 2dr Post, 428, Tri Power, 3.55 Gears 80 Trans Am Black SE Y84 W72 WS6 |
#18
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Fair to say non-brass NOS in discs is rare. If most have never seen one, and those hunting specifically for years have never seen one, that possibly qualifies. Hard enough finding a used original and then risking the condition of it.
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#19
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I recall seeing the brass ones on 4 wheel disc cars.
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🧩 Burds Parts, Finding those Hard to Find PCs, no Fisher Price Toys Here Just Say No To 8” Flakes pause pause F ire B irds 🇮🇱 |
#20
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I got you, I always assumed a W72 was a TA 6.6 motor. I put a mild 400 in the 81 SE T top car I got for the kids to drive to high school. Now they are grown I have a 455 slated for it! I pulled off my prop valve and T'd the fronts and have an adjustable in the rear now.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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