When looking at a carrier out of a 95Z having a factory 3.23, how do you tell which carrier it has? The only numbers on it are "3 OK.4".

With factory 3.23 gears, does that mean it has a factory carrier for 3.23 and up gears?

 

if the factory installed gears are 3.08 or lower it is a 2 series carrier, if the original gears are higher than 3.08 it is a 3 series carrier.