What Manual Transmission Works Best for My LS Swap?

Chevrolet Technology and Innovations
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I’m currently planning an LS swap for my Chevy and I’m at the stage of choosing the right manual transmission to pair with the engine. From what I’ve gathered, it seems like there are a few decent options out there, but I’m looking for more insights from others who’ve done this before.

Transmissions to Consider

Here are a few manual transmission options that I’ve found mentioned frequently in discussions:

  • T56: This seems to be a popular choice because of its strength and wide gear ratio spread. I’ve seen it suggested for both street and track applications.
  • TKO 500/600: Another option that some have recommended, especially for those who want something a bit more traditional without all the bells and whistles.
  • Nissan 350Z 6-speed: I’ve heard of some folks adapting this one as well. Any thoughts on its compatibility?

Questions I Have

  1. Sourcing: Where’s the best place to look for these transmissions? I don’t want to spend a fortune.
  2. Installation Tips: Any pointers on what to watch out for during the installation? I want to make sure I do it right the first time.
  3. Performance: Based on your experiences, how do these choices compare in real-world performance? Are there any pros and cons I should be aware of?

Overall Goals

Ultimately, I’m looking to have a setup that’s fun to drive and can handle some decent power. My LS engine is going to be mildly built, so I want to make sure the transmission can handle it as well. Looking forward to hearing your thoughts and thanks in advance for any help you can provide!

7 Likes
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For LS swaps, the T56 is often the go-to choice due to its wide gear ratios and compatibility with high horsepower applications. It’s a solid performer and handles torque well.

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Absolutely! I love the T56 but have also heard good things about the 4L60E for a more budget-friendly build. It’s all about what you want in terms of performance.

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The T5 transmission is another option, but it might not handle the higher torque from LS engines as well as the T56. Just something to keep in mind.

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That’s a good point! I think it really depends on your intended use—track vs. street driving can influence that choice.

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Has anyone had experience with the G56? I’ve seen some folks use it for LS swaps, and I’m curious if it holds up under pressure.

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I’ve used the G56 with a Cummins, but I’m not sure about LS applications. It’s worth checking compatibility and gear ratios. What kind of project are you working on?

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The Saginaw is another manual option. It’s rugged but can be a bit tricky to install. Just consider the cost of modifications if you go that route.

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Right, and I love that old-school feel! But I totally agree about installation; it can be a pain, especially if you’re retrofitting.

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If you want something unique, consider the Tremec Magnum. It has a great gear ratio for performance and is also quite durable.

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I’ve read really good reviews on the Tremec too! Just make sure to check the costs involved with the conversion.

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I’m leaning more towards the ZF6. It’s proven to handle massive amounts of torque and has a decent shifter placement for LS swaps.

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I read that the BMI T56 swaps can be a huge money pit! As always, weigh your options before diving in!

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Totally! It can be daunting. But the performance upgrades make it worth it for many enthusiasts.

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Ultimately, it comes down to your build goals and budget. Each option has its pros and cons!

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For my LS swap, I went with a Tremec T56. It has a great balance of performance and drivability. Just be ready for some modifications to fit it in, especially around the shifter location.

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I have a T56 as well! The only struggle was adjusting the drive shaft length. A rear-end swap could help ease that too.

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I’ve heard Mixed reviews on the T56. Some guys say the gearing is great, but others found it challenging in low-speed scenarios. What do you think?

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I can see that. While it’s excellent for highway and track use, low-speed driving can be tricky at times. But, hey, that’s part of the fun!

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I faced challenges with the bellhousing alignment during my swap. Make sure you have the right tools for measurement and consider a hydraulic throwout bearing for smoother engagement.