PART NUMBER: 61-3153
Genuine Mazda 7" ring and pinion in 3.636:1 final drive ratio. Fits 1994-2005 differentials, as well as 2006-2015 differentials. We import these from Japan and have them in stock in the US!
Also available separately on our site, which you may want to get at the same time:
- Mazda electronic speedo drive calibrated for 3.636:1 ratio (1999-2005), part # 61-3154 on our site
- Mazda axle seals (1994-2005), part # 61-3155 on our site
1990-1993 Miatas can run this ring and pinion if they use a differential and axles from a 1994-2005... a common upgrade for those years anyways to get the stronger 7" ring gear.
1999-2005 use an electronic speed sensor so you can get the replacement speed sensor sold separately on our site that is calibrated for the 3.63 ratio and that will fix the speedometer that would otherwise be off with this change in rear end ratio. 1990-1997 Miata speedometers are gear-driven rather than electric, so they cannot use that sensor and their speedometers will be slightly off.