As there arent any shops offering replacement gears for the S4 N/A, I need to know whether there are gears from other makes or models that will fit the S4 N/A gearbox.

Thanks in advance
Kim

 

Both Speed Source (www.speedsourceinc.com) and ISCRacing (www.iscracing.net) can perform the machining required to adapt 4.88 and 5.12 gears from different Mazda platforms.

But aside from the 3.9, 4.1, and 4.3 gear ratios, nothing is a drop in replacement.

PaulC