Suspension Upgrade - ARB/OME MT64 Discussion

DJ’s Sled

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Jan 9, 2025
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I’ve been asked to start this specific thread for the ARB/OME MT64 Suspension Lift kit. Thank you ColoradoOutdoors for the suggestion! As I guessed there will be a fair amount of interest in this lift kit, depending on your budget and needs.
Please weigh in with any corrections or insights to what I or others post here.

After a reasonable amount of discussion with Slee Offroad, in Golden, CO, I’ve decided to go with the ARB/OME MT64 suspension upgrade. They confirmed that all parts and options are already in stock and have reserved them for my install late this month. I’m going with the normal/mid-weight rear springs, the optional UCAs, and the optional DuroBump bump stops for my 2024 Overtrail. This kit is ARB’s ‘mid-range’ suspension offering.

Here is the kit. You can work thru each of the component tabs to get a quick understanding of the kit, and parts pricing. Installation is separate, and is provided via an emailed quote. I will have Slee do the full install. I previously used this same approach with them for my Slee Rock Sliders.

You can see this kit is marketed for both the LC250/GX550 trucks. Slee just finished an install on a pretty new (it appears) LC250 3 weeks ago:

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This LC still sits on its OE wheels and tires in these pictures. It has a heavier, non-stock front bumper. Slee dialed in the front to leave a very small amount of rake for heavier loads on the rear. I’m not sure of the exact trim of that LC 250. The resulting lift looks perfect for what I’m trying to do. Plus, I hope to improve the ride over stock.
You can clearly see they used the 3rd or 4th setting to accommodate the heavier than stock front end. Seems to work well. I don’t know if the owner chose to keep the OE UCAs or upgraded, or which rear springs were used.

I’ve had a couple comments, questions about why I’m going this route. It boils down to trying to improve the day-to-day ride (aka, the ‘vibration’ issue that my 2024 OT still has), handling heavier loads with more control, and cruising rough roads with greater comfort and reasonable speeds. And..at the moment, my wife has become more and more disenchanted with the ride.
I don’t expect to fully, perfectly address each of those wants. But after discussions with Slee I feel I may get very close.
It’s a bit of a swing for sure!

On the ride and vibration concerns, I’m still not sure what the issue is..I’m currently suspecting the OE shock and spring combination, where the engineers tried to dial them in to match the AVS and sensors programming, but kinda missed the mark in some regard.
Maybe someday we’ll have an after market solution that plugs into and directly utilizes the Lexus AVS. But that would require some special work and coordination with Lexus engineering.
I generally like the AVS idea and system too, it’s really cool. I want it to work.
But I’m not sure how compatible the current AVS and related components are with the desired goals some of us have.
More and more recently I’ve found myself disappointed with the suspension no matter which drive mode I select. I would describe it as wanting a somewhat more robust, confident and capable feeling set of components underneath. To match an otherwise robust truck.
I want more of the increased stability and confidence I felt when I installed the upgraded tires a few months back. That was a nice and simple upgrade.

So with a few goals in mind, and some thinking, reading and discussion I’ve decided to give it a go. I’m actually trying to improve a really, really good vehicle.
I really love the car. It’s almost always my first choice out of the garage. I’ll still be able to dial up the power, the eco mode, and retain essentially all the off-road goodies, and hopefully address what I want.
 

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