Don't think I have seen any factory bulletins on it.
I always thought the Firebirds got the 7" wide for the disc brakes. Didn't really know the GTO had the 6" wide on them until later in life. (No GTOs for a long time)
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John Wallace - johnta1
Pontiac Power RULES !!!
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Winner of Top Class at Pontiac Nationals, 2004 Cordova
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KRE's MR-1 - 1st 5 second Pontiac block ever!
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