it's on the driver sd of the tranny....1 bolt to remove and the gear is held in by a small clip....it's been a while since i've done mine so i can't remember exactly, just look for something being held in by one bolt on the driver sd.
For 96-98 cars you have the option of a driven gear as well as an electronic compensator. Depending on how steep your gears (4.10's or higher) and what kind of error in the speedo/odo (1%, 5%, 10%, etc...) and cost (gear is $15, SpeedCal is $90-$100, Abbott is about the same) determine your course of action. Electronic compensators like the SpeedCal will get you within 1/2% or better. A driven gear can get you pretty close in too depending on the ring/pinion choice
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