I changed my gearing from 4.56 to 4.88 and tires from 31 to 32. The speedometer is off by 5mph at 60. (speedo reads 65 when doing 60) Truck is 5sp w/3.0 v6, 1990.

How do you fix this?

 

https://www.yotatech.com/forums/f116...l-pics-195986/

Here is a link to a gear you can get there are plenty more I just had this one bookmarked.

 

Thanks for the link Dis... It didn't show up in my search.

 

I was looking into doing the reduction gear but since I have given up I also was trying to get a different gear from the dealer from a different trans but it seems either the guy at the parts desk didn't really know how to cross reference the gears from years and transmissions, or he didn't feel like working. Let us know what you end up doing but I have 456's not sure if they had anything that came stock with 488's?