The 4.88 and the 5.12 gears are still available new. I keep seeing in threads that they are hard to find so I thought I should post this up. I have the proper gear sets for the second gen RX7 ready to install. Demand is not there for most of the Mazda shops to mess with them anymore so you can get them direct from us. These are done with the same process as the gears we have all raced for years. We can also modify the other oddball ratios if you need them.