What year did they start using 9 bolts

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Jun 10, 2001 | 08:14 PM

Milner86

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Joined: Apr 2001

Posts: 6

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From: Manhattan KS, USA

What year did they start using 9 bolts

I was just curious as to what year that they started putting 9 bolts in the IROCs

Jun 10, 2001 | 09:09 PM

drain89

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iTrader: (10)

Joined: Jul 1999

Posts: 802

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From: Chesapeake, Ohio

Car: 02 WS6 White/Ebony

Engine: LS1

Transmission: T56

Axle/Gears: Stock 3.42

Mostly '87 and some '86's. TA's started putting some in '85's. A few supposedely had 3.70's from the factory.

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