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rear disc rotor size on a 9 bolt?

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Old Nov 27, 2002 | 09:30 PM
  #1  
86IROCTHD's Avatar
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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
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Old Nov 28, 2002 | 08:13 AM
  #2  
Z28DJP1987's Avatar
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From: Ohio, USA
10.5 same as the front. Changed to 11.655 in 1989.
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