9 bolt brakes

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Nov 27, 2008 | 09:53 PM

91 camaro rs

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Joined: Oct 2006

Posts: 329

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From: Surprise,AZ

Car: 91 rs

Engine: 305tbi

Transmission: 700r4

Axle/Gears: 3.27 9bolt

9 bolt brakes

do the brake rotors and calipers for a 9 differ from a ten bolt or R they the same thing?

Nov 27, 2008 | 10:48 PM

ebmiller88

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Posts: 6,420

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From: Fort Mill, SC, USA

Car: '88 Iroc, '91 RS, and a '70 RS

Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag

Transmission: A4, A4, slated to be a T56

Re: 9 bolt brakes

Depends on the year. '89-92 rear discs are all the same but the 9 bolt would only apply to the 1989 year in this case as '90-up were all 10 bolts. 9 bolts were used from '85-89 IIRC, I'm sure someone knows for sure.

Ed

Nov 29, 2008 | 05:02 PM

JamesC

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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: 9 bolt brakes

82-88 would have the same Delco-Moraine iron calipers and 10.5" rotors regardless of whether they were 9- or 10-bolt. 89-92 would have PBR single-piston alum calipers and 11.7" rotors whether they were 9- or 10-bolt.

JamesC