Originally Posted By milligoon
If it is the newer generation gearbox you may wish to read through this topic.

https://forum.miata.net/vb/showthread.php?t=610318


I believe the reliability issues (according to the drift and track crowd) relate to the 6spd version of the Mazda gearbox. It is the 5spd version that is being proposed for this conversion.

Stuart
"There's no skill substitute like cubic inches."