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Jun 30, 2012 | 11:17 PM

92WS6 T/A

Thread Starter

Junior Member

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Joined: Jan 2009

Posts: 63

Likes: 1

From: Owensboro, Ky

Car: 1992 WS6 T/A

Engine: Turbo 383 with Holley Sniper

Transmission: factory 5 speed now Powerglide

Axle/Gears: Strange 12 bolt w/373 locker

PBR

How do i know if i have PBR brakes on my car?

Jul 1, 2012 | 12:18 AM

87350IROC

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iTrader: (2)

Joined: May 2002

Posts: 4,449

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From: Everett, WA

Car: 87' IROC

Engine: L98

Transmission: T56

Re: PBR

Quote:

Originally Posted by 92WS6 T/A

How do i know if i have PBR brakes on my car?

The rear rotor would be 11.75" or somewhere around there. The older setup used 10.5" rotors.

Jul 1, 2012 | 12:40 AM

92WS6 T/A

Thread Starter

Junior Member

iTrader: (4)

Joined: Jan 2009

Posts: 63

Likes: 1

From: Owensboro, Ky

Car: 1992 WS6 T/A

Engine: Turbo 383 with Holley Sniper

Transmission: factory 5 speed now Powerglide

Axle/Gears: Strange 12 bolt w/373 locker

Re: PBR

Is that the only way to tell? No tag anywhere or RPO code to look for?

Jul 1, 2012 | 06:40 AM

JamesC

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iTrader: (5)

Joined: Aug 1999

Posts: 19,282

Likes: 103

From: Lawrence, KS

Car: Met. Silver 85 IROC/Sold

Engine: 350 HO Deluxe (350ci/330hp)

Transmission: T-5 (Non-WC)

Axle/Gears: Limited Slip 3.23's

Re: PBR

Quote:

Originally Posted by 92WS6 T/A

Is that the only way to tell?

J65 PBR's are finned alum and look nothing like the J65 Delco-Moraine iron calipers.

Check my vbGarage (shedlike icon next to my on-line status) should you like a pic.

JamesC

Jul 1, 2012 | 11:27 AM

DJP87Z28

Supreme Member

Joined: Mar 2003

Posts: 4,771

Likes: 15

From: Florida

Car: 1987 Black IROC-Z (SOLD)

Re: PBR

89 PBR brakes on a 9-bolt rear.

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Jul 1, 2012 | 12:27 PM

Aaron_SK

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iTrader: (1)

Joined: Apr 2006

Posts: 356

Likes: 0

From: Washington

Car: 1985 Sport Coupe

Engine: 3800 Series II Turbo

Transmission: 4th-gen WC T5

Axle/Gears: 3.27 BW Limited

Re: PBR

Quote:

Originally Posted by 92WS6 T/A

No tag anywhere or RPO code to look for?

But have you thought about looking at the brakes?

PBRs have large fins and are both on the same side of the axle. Delcos are smoother(er), cast iron and are on opposing sides of the axle.

Jul 1, 2012 | 01:20 PM

92WS6 T/A

Thread Starter

Junior Member

iTrader: (4)

Joined: Jan 2009

Posts: 63

Likes: 1

From: Owensboro, Ky

Car: 1992 WS6 T/A

Engine: Turbo 383 with Holley Sniper

Transmission: factory 5 speed now Powerglide

Axle/Gears: Strange 12 bolt w/373 locker

Re: PBR

Mine do have the large fins and they are on the same side(rear bumper side) but i haven't seen any on a 10 bolt. Every car I've seen the PBR's on had the 9 bolt rear end.

PBR

PBR

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