Anyone Swapped to a 6-Speed Miata Transmission? Need Insights!

I think a lot of it comes down to the driving style. How aggressive are you when shifting?

I’ve had a few shifting problems, but mainly attributed to a worn-out shift lever. Replacing it with an aftermarket short shifter improved both feel and precision big time!

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Great tip! Short shifters do make a difference. Just make sure the installation is tight to avoid rattling noises.

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Be cautious with fluids. I initially used a different brand and ended up with a sticky shifter. Red Line MT-90 has worked best for me after switching.

What about those clutch squeaking sounds? Mine makes a noise sometimes; is it a sign of wear or a simple lubrication issue?

A little squeaking could be just a lack of grease on the pivot points. If it gets worse, it could be something more serious. Check it out before it turns into a problem!

Biggest issue I faced was some vibes during acceleration. A prop shaft donut fix took care of that. It’s a common concern, don’t let it deter you!

That’s good to know! It’s helpful to hear that you found a solution. It can be annoying, but knowing others faced it makes me feel better.

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I personally had no problems with my swap, but I know quite a few have reported a clunky feel. Regular fluid changes seem to help with that.

Did anyone get the TR-6060 6-speed? Noisy but has mad power. Worth the trade?

I’ve heard mixed things about it. Some love it, some hate it. You might want to think it through!

For maintenance, I change my transmission fluid every 30k miles. It’s a bit much, but I want to avoid problems later on. Totally worth it in the long run!

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I’ve swapped a 6-speed from a 2005 Mazda 3 into my 1999 Miata. You’ll need custom mounts, and don’t forget about the drive shaft alignment! Took me a weekend, but it was worth it for better acceleration.

That sounds awesome! Did you notice a significant difference in your gear ratios? I’m curious if it’s a big improvement over the stock 5-speed.

Definitely check the shift linkages. You might need to modify them a bit for a smoother transition. I love how snappy my shifts are now!

Good point! I struggled with that initially. What was your experience with gear ratios at highway speeds?

I achieve a good balance! At 70 mph, my RPMs are quite reasonable, which is great for fuel consumption. The 6-speed spreads the power nicely.

Has anyone had issues with the clutch? I’ve read mixed reviews about matching the clutch to the 6-speed. Any tips?

I went with a heavy-duty clutch, and it made a huge difference! Just ensure it’s rated for the power you’ll be putting down.

Interesting choice! Any feedback on pedal feel? I’ve heard that heavy-duty sometimes leads to stiffer pedals.

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