rear disc rotor size on a 9 bolt?

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Nov 27, 2002 | 09:30 PM

86IROCTHD

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Joined: Aug 2001

Posts: 483

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From: Dallas, Tx

Car: 88 Trans Am

Engine: lt1 intaked 355 makin 277 on 25 psi of fuel pressure and stock timing :)

Transmission: A4 stock... that moved a mobile dyno a foot shifting into 2nd :)

rear disc rotor size on a 9 bolt?

what is the factory size of a 9 bolt rear disc rotor for an 86 t/a

Nov 28, 2002 | 08:13 AM

Z28DJP1987

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Joined: Sep 2000

Posts: 1,493

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From: Ohio, USA

10.5 same as the front. Changed to 11.655 in 1989.

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