The years were not mutually exclusive however - different years used different combinations of RPO codes. 91 & 92 Z28's with the L98 required G92 to get the 3:23 gears 87-90 did not. Shortages also caused the replacement of the J65 rear discs with the J41 drums in various years. 85-90 got the Australian built Borg Warner 9 bolt (the better rear) 91/92 got the 10 bolt.
It's a tangled web of inconsistencies and changes - when the OP finds a car and wants to check it out - let me know the VIN & I may be able to pull the entire RPO list for you to confirm it.
__________________
Some guys they just give up living
And start dying little by little, piece by piece,
Some guys come home from work and wash up,
And go racin' in the street.
Bruce Springsteen - Racing In The Street - 1978
Last edited by The Boss; 05-08-2017 at 12:30 AM.
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