Rear Gear Comparison
Tire Data:
Width: in millimeters Other:
Aspect Ratio: whole number Other:
Rim Diameter: in inches Other:
Transmission Data:
A4/MX0 M6/M28 M6/M29 M6/MN6 Other
Other: *
1st 2nd 3rd 4th 5th 6th
Rear Gear Ratio:
New Ratio: :1 Other: :1
Old Ratio: :1 Other: :1
This calculator is primarily set up for comparing the effects of a gear change on a 4th generation F-Body, but can be used to compare a gear change on any vehicle if the transmission gear ratios are known.

* For transmissions with less than 6 gears, only supply ratios for appropriate gears, and leave the others blank.