Lifting an 04 with XRAES and Air

[ssmathis]

Here's another article about how you can trick the SLS on D2s into sitting higher. Basically they moved the mount so that the sensor thinks the rear has a heavy load and adds more air to level it out. Don't know if this would work or not since I haven't had a chance to investigate this yet.

Scott

Tricking the rear SLS on a D2.

 

[cpguy33]

Stock Adjustable Rear Air Suspension

Looking through the Toyota Factory Shop Manual I recall seeing a page or two about adjusting the sensor for the rear air suspension. This adjustment would raise or lower the preset height of the truck. There are two sensors, one for eash side, that you could turn with a wrench to adjust the height. It even told you how high one full turn would raise/lower the truck. I am at work right now so I don't have the CD Manual on hand. I will try and post it when I get home.

 

[4x4v8]

thank you! i look forward to your posting.

 

[cpguy33]

I can't find the exact pages that I was refering to but attached are some pages showing how you could adjust the height. It states that you could set the default, or normal, height that you want by first lifting or lowering the truck to the height you want. This could be done by using a jack or whatever to set the body (not the axle), leaving the wheels on the ground, to the desired height. Then, using three 1.5V batteries and a volt meter, adjust the link until the volt meter reads 2.11V-2.51V. Both sensors must be within 0.2V of each other.

 

[ssmathis]

Thanks for posting the file. In theory, it looks pretty simple to adjust. You could potentially raise the rear say 1.5" as they new normal height but then I'd have to figure out how to raise the front 1.5" to match. No one makes a 1.5" spacer that I'm aware of. Also, I would be a little concerned about raising the rear 1.5" and then pressing the high setting. This may extend the bags too much but this wouldn't be a concern if you just drove in the higher normal setting all the time.

Scott

 

[Jared]

then I'd have to figure out how to raise the front 1.5" to match. No one makes a 1.5" spacer that I'm aware of.
Scott

Well, you don't need to match the 1.5" exactly on the front. You could just do a 2.5" spacer lift and that should work. #1 When you lift the front, some weight will be lifted from the back and it will naturaly raise a little bit as well. #2 A difference front to rear of less than an inch (why less, see #1) won't be too noticeable, and actually works better offroad in some situations (ie: desert running).

 

[ssmathis]

Not a lot of deserts here in the southeast but true, a small difference wouldn't be too noticeable. The problem with this as I see it is the air bags only raise the rear 1.57" normally when on high mode. So if we raise the rear 1.5", I don't know how the air bags will compensate for a 2.5" spacer up front. Maybe the bags can hande another .5" or so but I don't know. I have to think we'd be pushing the limits of them at that point.

 

[purplehazek4]

hello everyone,
i'm a long time lurker, first time poster. i too am in the same boat as you guys are. i have a gx470 which i've been looking into doing a mild lift, but the rear seems to be the problem. i was hoping pulling the fuse would work but the blinking light would bother me too. however i did want to know, when the fuse was pulled did the rear stay up as you drove it passed the regulated speed?

thanks
dan

 

[Koz]

The rear air set at high is equal to a 4" lift, so all you would need is something for the front. I would think 2" would work well even when the rear is at the auto setting. I think with a 2" lift in the front and 165/70/17 tires you should be OK for most moderate trails and still look OK for normal driving. You can also raise the auto level height if you need to.

The rear reverts to the auto setting height at approx. 22mph which should be OK for off-roading. Mine has never lowered during off-roading.

Koz

 

[mshrake]

I Finally Did It!

So, after 30,000 long miles, I wore down the stock tires. Last week I upgraded to the Nitto Terra Grappler 265/70-17 and had a 2.5" Daystar front lift installed.

For the rear I did the following:

1. Started engine
2. Raised rear air suspension
3. Stopped engine
4. Pulled the rear air suspension #2 fuse

The only down side of this is the rear air suspension off light blinks in the dash now. I might just cover the light with a piece of electrical tape if it bothers me too much.

So far the lift and tires have not made a mojor difference in road noise or MPG.

I am not sure what I am looking at, so can anyone tell if they did a good job installing the spacers?

I am SOOOOO much happier with the 4Runner now!

 

[4route]

looks a-ok to me!!

 

[4x4v8]

all i can say is ... that looks nice. im glad youre hapy with it. hopefully there wont be any problems. keep up posted!! awsome work though!

oh, what would happen if you put the fuse back in? would it just lower the back? or would it level it out?

 

[mshrake]

When you put the fuse back in, it lowers it back to the factory set location. It does not level it.

It had a pre-runner look to it before, and I like the current look better.

 

[4x4v8]

mshrake, could you post up a pic of when you put the fuse back in....if you do it again. im really liking the idea of this front only lift. looks good. and keep us updated about what you do about the blinking light. thanks!!!

 

[mshrake]

Here is a picture I took before pulling the fuse. It does not look bad, I just like it with the rear raised better.

Sorry about the quality, the shot was taken with my cell phone.

Oh yea, and I was rear ended the day before I took this picture. FYI, the 4Runner does great compared to the front end of an 01 Chevy Impala. Everyone was fine.

 

[4x4v8]

thats awsome! thanks a lot. i look forward to doing the same. i just need a little something called money. ahahah...

 

[Jaebster]

Xreas with Factory Rear Air liftable

Sorry guys to bring up a dead thread but...

I've been in contact with a guy up in Canada that got his 4R spacer lifted with 3/2 Cornfeds. His 4R has Xreas and the factory rear air. I've got some emails from him about the install. He got it professionally done. The front spacers are installed as normal (obviously). The rear spacers had to be machined to fit somewhere at the bottom of the suspension (airbags). He did send pics of his 4R after the lift but he does not have pictures of the rear spacer installed with the tire off.
I've contacted a few shops here in L.A. (near Burbank) but can't find a off-road shop that has the following criteria.
1) knows about the 4th Gen Xreas system (albeit, even seen the suspension of an Xreas 4R and factory rear air system).
2) Has lifted a 4R with Xreas system.
3) has the ability to machine poly spacers in-house.
One of the shops said that they would be willing to try but a damaged $1,200 Xreas replacment is not what I'm looking for.

Any shops locally to Los Angeles that anyone could recommend that has experience with Xreas?

Will be purchasing the spacers soon. Still researching as to which brand I want (Revtech, Daystar, Cornfed).

 

[4x4v8]

Who from Canada were you talking to? There are a few of us up here

Im just curious as to who has lifted it with the rear airbags...

 

[Jaebster]

It was a guy named scott and he went to Modern Motors in Calgary. If anyone here is successful in contacting Modern Motors to get this done, pm me. I'd like to send up the spacers so that they can duplicate the machining on them. Thanks

 

[Jaebster]

I had emailed them previously and this was their response:

Hello Stephan,
I am hoping that I am just going to be repeating an earlier e-mail that may have gotten lost in our system.... sorry if you haven't received a reply previously, we had a minor issue with our server and are just getting caught up.

Yes, the front suspension went in without a hitch, the rear actually wasn't too hard once it was figured out.
We took the spacers and turned them down in a lathe, unfortunately, there are no pics of the installation.
I believe the brake lines were fine at stock length, but the brackets were modded just a little for extra clearance. (bent down just a little) As far as needing technical assistance, once they see the system and have an understanding of what was done, they should have no problems with this install.
I hope this info helps you out, and has not come too late.
Thanks for the e-mail and your patience.
Drew H
Modern Motors (Calgary) Ltd.