Glad you’re enjoying it! Just wait until you hit those mountain roads! The M21’s ratios really shine there!
I think this discussion is great! But I can’t help but wonder—might the ‘perfect’ gear ratio depend heavily on the specific car setup or engine type? Just a thought…
Hey there! The Muncie M21 is a great choice for a performance transmission. Be sure to check compatibility with your vehicle’s bellhousing. Some models may require an adapter plate.
That’s good advice! Can anyone share experiences with modifications needed for different muscle car models?
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When installing the M21, expect to face challenges with driveshaft alignment and cross-member adjustment. I had to custom-fit mine to get it right.
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[quote=“dcox, post:3, topic:3389”]expect to face challenges with driveshaft alignment…[quote]Is there a specific driveshaft length you’d recommend? I’m trying to avoid extra modifications.
It really depends on your car’s setup, but many users find that a 31-spline shaft works well with the M21. Just double-check your rear end!
I had a blast installing mine and learned a lot along the way. Just be prepared to feel like a contortionist under the car at times, especially if you’re working solo!
LOL! You’re not kidding! Did you use any specific tools to make the job easier?
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A good set of ratcheting wrenches and a lift (or at least a good jack) make all the difference. Trust me, your back will thank you later!
Smart move! I’ve heard the M21 has a pretty unique gear ratio. Can anyone explain how it impacts driving experience?