I checked on the 50resto site for a speedo gear for my '93 AOD and they list a 23 tooth gear for $10.95, but they also had the following listed:
"Owners of 1990-93 automatic equipped cars must use a gear reduction box to correct the speedometer which are available at most transmission shops. "
Has anyone used a gear reduction box, is it necessary or will just using the 23 tooth gear get me back somewhat close to the actual speed?
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