Hey guys, I just bought a 1992 Miata and the previous owner had a 4.30 gear in the diff, but returned to the stock 4.10. Right now the speedometer reads around 5-10mph high depending on the actual speed.

Where can I find the replacement part? I checked Parts Group, but they only have a 4.10 listed for the 99-05 6-speed.

 

Nobody knows where to find this part? Any info would be great, part numbers would help too.

 

you tried to call them yet? sometimes they might have something that has not been added to the site yet or if one comes in your name is there for them to contact you as soon as they get one