Lifting a KDSS Trail Ed.

[rclangelan]

Hey all,

I've had my 2010 Trail Edition for a few weeks now and I'm starting to contemplate larger tires. The largest that seems to be able to fit (without rubbing) on the stock KDSS supsension is 275/70/17s.

Has anyone tried lifting a KDSS equipped T4R? Is there any reason why standard spacers would be an issue? I was considering a 2" spacer in the front and maybe a 1" in the rear. I just don't know enough about it to make an educated decision.

On another note, I do a little offroading in PA where the terrain is mostly rocks ranging in size from tennisballs to basketballs, with the occasional boulders thrown in the mix. I'm considering the DuraTracs as my next tire. They're suposed to be great in the snow (also important to me) but I don't know how they'd hold up on loose rocks. Thoughts?

Thanks,

Ryan

 

[4RBob]

I have an electronic swaybar disconnect on my Jeep. When you lift it, you must also lengthen the swaybar links or else the swaybar could become inverted when articulating.

It may very well be the same case with the Trail Edition with KDSS.

 

[rclangelan]

I have an electronic swaybar disconnect on my Jeep. When you lift it, you must also lengthen the swaybar links or else the swaybar could become inverted when articulating.

It may very well be the same case with the Trail Edition with KDSS.

Hmm, may be more involved than I'm willing to get in to... bummer.

Thanks,

Ryan

 

[4RBob]

Hmm, may be more involved than I'm willing to get in to... bummer.

Thanks,

Ryan

Nah, not a big deal at all. Just the kits will need to include them if they are required. Replacing the sway bar links is a whole lot easier than installing the spacers.

 

[Trik444]

Hey guys, I've got a 2005 4Runner and I'm unfamiliar with KDSS. Is this the new version of XREAS suspension technology or what? Thanks!

 

[Trik444]

Nevermind, I decided to get off my lazy ass and search the Toyota website - Kinetic Dynamic Suspension System. I'm guessing this is similar to XREAS?

 

[Uneek]

Nevermind, I decided to get off my lazy ass and search the Toyota website - Kinetic Dynamic Suspension System. I'm guessing this is similar to XREAS?

KDSS is sway bar disconnect system. It gives the 4Runner less body roll when cornering on road allowing a thicker sway bar to be used, yet allow it more flex and articulation off road.

Formidable Technology for Four-Wheeling
Toyota also demonstrated its Kinetic Dynamic Suspension System (KDSS), which comes on the Lexus GX 470. By allowing the decoupling of the GX 470's front and rear stabilizer bars, KDSS allows greater suspension articulation (movement, that is) off-road. This was aptly demo'd on the off-road section of the Proving Grounds, where we took identical GX 470s over a severely rutted trail, one with the KDSS turned on and another with it off.

As you can see from the photos, the KDSS-assisted truck was able to keep all its tires in contact with the ground due to the greater suspension travel afforded by the system, while the one with KDSS switched off has a rear tire clawing at thin air.

Another benefit of KDSS is that it allows larger stabilizer bars for improved on-road handling via decreased body roll. So yes, sometimes you can have your cake and eat it, too.

From Edmunds

Toyota’s Kinetic Dynamic Suspension System (KDSS) | Lou Ann Hammond on carlist.com

Kdss...Kinetic Dynamic Suspension System..

 

[andyman32392]

You could always find out what they did with the one for the Baja 1000, I believe they left all the mechanical things like suspension stock and had bigger tires.

 

[Thai]

Hey all,

I've had my 2010 Trail Edition for a few weeks now and I'm starting to contemplate larger tires. The largest that seems to be able to fit (without rubbing) on the stock KDSS supsension is 275/70/17s.

Has anyone tried lifting a KDSS equipped T4R? Is there any reason why standard spacers would be an issue? I was considering a 2" spacer in the front and maybe a 1" in the rear. I just don't know enough about it to make an educated decision.

On another note, I do a little offroading in PA where the terrain is mostly rocks ranging in size from tennisballs to basketballs, with the occasional boulders thrown in the mix. I'm considering the DuraTracs as my next tire. They're suposed to be great in the snow (also important to me) but I don't know how they'd hold up on loose rocks. Thoughts?

Thanks,

Ryan

I would just keep it stock...you have pretty good clearances already. With the 275 tires, did you test rubbing when the KDSS is active?? Because it may rub at THAT time! I would get rock sliders as the first priority.

With rocks, i would make sure that whatever tires you pick must have a strong sidewall.

 

[rclangelan]

I would just keep it stock...you have pretty good clearances already. With the 275 tires, did you test rubbing when the KDSS is active?? Because it may rub at THAT time! I would get rock sliders as the first priority.

With rocks, i would make sure that whatever tires you pick must have a strong sidewall.

Well, it's a non-issue for the next few years as I just ordered my set of E rated DuraTracs in 265/70/17. They'll be installed next weekend.

This way I've got tough tires, and full articulation... and no worries.

Thanks for any and all advice!

~ Ryan

 

[lexwoody]

I'm 90% sure that you can lift it with KDSS like the Land Cruiser 200 series by lifting you truck off of all 4, open the KDSS value(s), installed suspension, set truck back on the ground, and then close the value(s). Research 200-Series Cruisers for more infor.

 

[Jesse1983]

i have read a lot on the Ih8mud forums regarding lifting their LC's with KDSS. it seems relatively easy as long as you bleed the system prior to install. i'll keep reading as i hope to purchase and install a lift in April. Anyone else come up with any helpful info regarding lifting a vehicle with KDSS?

 

[purplehazek4]

I have a lifted GX470 with KDSS (which is almost identical to the KDSS on the 4runner) with no issues at all. The sway bar just rolls inside the endlink bushings when the suspension goes up and down.

 

[Ryan_S]

why is that video on carlist so tiny!!!111!!!!1!! :redbrick: