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Discussion Starter · #1 ·
97 tj 4cyl automatic tranny put bigger tires and wheels on transmission seems like its slipping does the speed sensor need recalibrated?
 

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There is no speed sensor. You can swap a new Speedo gear into the transfer case but this will in no way impact vehicle performance.

Did you notice the issue immediately after tire install? You are likely noticing the fact that your gearing is inadequate for the tire size.
 
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