Speedo Gears

I found out when setting up my car each pinion from the chart covers about 3 sizes of tires and you can only get so close. Brewers is where I got my pinion from and they sell them used but got lucky they had one for 20 tooth pinion. 25.6 tall tire and 3:23 gears.

I never knew they had ratio box's so I may give that a try. Thanks Dan