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Old Mar 27, 2026 | 12:25 PM
  #121  
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Originally Posted by ratchettt
My identical sentiments. FYI.

I've seen much talk about converting to the 500h diff but not why. Is it a different ratio than the 500 oem ratio or what? Thanks
Yeah its a different ratio. So you'd bring down the 0-60 by a couple tenths. IIRC this also means you'll be shifting through the lower gears more frequently as well, at least if you're driving hard and paddle shifting, given shorter ratios. But I may be getting this backward... maybe the lower gears have longer ratios. Either way the 0-60 time goes down a tad.

But for my use-case at this point, having moved from a C8 to the LC (whether this is moving "up" or "down" is subjective), I can't see it making my life different enough in the LC for it to make sense as an aftermarket mod.

For someone wanting "just a little more" in the spirited driving vein, it could make sense I suppose. Especially if doing serious track time. But that's just not something the LC is really designed to do and to date I only know of one user here who regularly tracks theirs, and no one else outside this forum.

A stripper 1LT C8 Z51, swapped out every 5 years for a new OEM drivetrain warranty, makes more sense as a track car. (A built miata makes even more sense than a C8, financially at least). So the target audience for an L500h diff swap onto a standard LC500 is rather narrow to say the least.

I still may do it someday if it is still possible, but by the time I might want to parts availability will probably be a limiting factor, lol.

Last edited by Korbek; Mar 27, 2026 at 12:32 PM.
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Old Mar 27, 2026 | 12:43 PM
  #122  
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Originally Posted by Korbek
Yeah its a different ratio. So you'd bring down the 0-60 by a couple tenths. IIRC this also means you'll be shifting through the lower gears more frequently as well, at least if you're driving hard and paddle shifting, given shorter ratios. But I may be getting this backward... maybe the lower gears have longer ratios. Either way the 0-60 time goes down a tad.
Correct, by changing the diff to the one from the hybrid, you end up with a shorter (higher number) final drive ratio, which thus shortens all of the gears proportionately.
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Old Mar 29, 2026 | 11:45 PM
  #123  
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Originally Posted by LegacyLC
A minor update - received all the parts, just haven't had the time to mess with the install. Life and all that. I'll make a follow up when I eventually give it a shot - until then the parts I mentioned earlier are in my garage haha
Awesome! Keep us posted please, hopefully it is direct fit without need to adjust anything
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Old Yesterday | 02:45 PM
  #124  
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Originally Posted by Korbek
I only know of one user here who regularly tracks theirs, and no one else outside this forum.
Even my "regular track" activities will now become celebratory only in nature, probably once a year type things. I've since picked up a 6MT 370z that I have been building for dedicated track-use.
Without the requisite cooling, track driving is too hard on the LC. Even then, the car has so much body roll and weight. Super heavy on consumables. Fun to drive and capable? sure. Practical to track? definitely not. I am faster around the track in the Z anyway despite over 100whp less (1000lbs less also helps).

Last edited by np20412; Yesterday at 02:48 PM.
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Old Yesterday | 04:35 PM
  #125  
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@Np04412
This is a very understandable decision. The laws of physics cannot be erased and the additional 1,000 lbs of weight undeniably makes its presence felt. It is actually an achievement that the LC 500 performs as well on the track as it does. The designers and engineers obviously prioritized excellent road performance and characteristics. Their execution and end results are a bullseye success.
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Old Yesterday | 04:43 PM
  #126  
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Originally Posted by 400Mman
@Np04412
This is a very understandable decision. The laws of physics cannot be erased and the additional 1,000 lbs of weight undeniably makes its presence felt. It is actually an achievement that the LC 500 performs as well on the track as it does. The designers and engineers obviously prioritized excellent road performance and characteristics. Their execution and end results are a bullseye success.
I agree. The fact that it does what it does on track is awesome for what the car ultimately is and was truly designed to be. If they had shaved a few hundred pounds and given it proper cooling they could have easily made an LC-F that would have been as competent as the RCF TE, but alas corporate decisions in the name of the bottom line robbed us of what could have been. Lol.
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Old Today | 12:02 PM
  #127  
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Default 400Mman np20412

You've distilled in few words an essential that's encyclopedic in understanding.
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