Air Lift 1000

AQH4Runner

New member
Hello everyone. I'm a new member to the forum with a question about the Air Lift 1000 system. I believe I've read most of the other posts on this subject, but haven't found exactly the answer I'm looking for, which is why I'm reaching out here.

A bit of background info first. We have a 2011 Limited which we've owned for about a year and a half now. Both my wife and I absolutely love this truck. It originally was purchased to replace my wife's Murano as somewhat a matter of necessity. We needed a vehicle that could tow a horse trailer (my wife and daughter ride). We looked at the other typical options in the SUV category (mainly for piece of mind and due diligence), but in reality the 4Runner was the clear cut front runner for me from the start due to our past experiences with Toyota vehicles and the 4Runner's reputation. Not to mention I loved the look of the 5th gen. Since towing is only an occasional occurrence for us I didn't want to go with a pickup (even though my wife really wanted a Tundra) mostly due to the gas mileage they get the 95% of the time we don't really need it. Plus, owning a pickup automatically bumps you to the top of the list when a friend/relative needs to move something.

So we've been towing our horse trailer off and on since purchasing the 4Runner. The trailer is roughly 2300# unloaded and we only use it for one horse. When fully loaded with the horse, tack, and some hay it's in the 4000# - 4500# range. We mainly only tow for short distances around northern IL and occasionally somewhat longer ones to southern IL and Indiana, so we're never dealing with any tough hills. And while a V8 would be nice on occasion, we've never had any power problems for our situation. The only thing I've wanted to address when towing is the sag. When everything is hooked up and loaded, the rear drops about 1.5"-2". We get the occasional flash from oncoming cars at night that think our brights are on, but other than that the 4Runner has never felt unsafe or unstable. We've never had any problems with sway or braking (have a Prodigy P2 brake controller) and always take it pretty easy because towing a live animal is a little different than a camper or boat.

Anyway, I've done a lot of research and feel that the Air Lift 1000 is going to be the best solution for us to "fix" the little bit of sag we're experiencing when towing. My main question is, does installing the Air Lift 1000 change the ride quality of the vehicle when it's not loaded? I know you let a good portion of the air out of the bags in this situation and are only supposed to keep about 5 psi in there so they maintain their shape, but since the air bags take up more room inside the coils than the factory bump stops, I'm worried about getting a bouncy ride when unloaded. The 4Runner has recently become my daily driver and I've come to like the ride of the XREAS system on our lovely suburban Chicago roads. I'd prefer to keep things as close to my new "normal" as possible. Changing out the suspension or lifting aren't options for us at this point either.

One other question. Are there any other members on here that know of good shops in the Chicagoland area (west suburbs would be ideal) that do this type of suspension work? To say that I'm particular about my vehicles would be an understatement and I like those that work on mine to be equally focused on attention to detail as I am. I'd do it myself, but the nights and weekends are filling up quickly and I'd like to get this done in the next month.

There is such a wealth of knowledge on this forum and there are so many mods I'd love to do given the time and $. Thanks in advance for the responses.
 
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PM a guy called Antman. He has done it and can tell you all about the ride quality. If you go to the stickie list on the 5th gen forum link you will find install instructions for the air bags. Looks like it would take no time. Again, PM (private message) Antman. He is very knowledgable about this item, among a plethora of electronics and awning knowledge.
 
PM a guy called Antman. He has done it and can tell you all about the ride quality. If you go to the stickie list on the 5th gen forum link you will find install instructions for the air bags. Looks like it would take no time. Again, PM (private message) Antman. He is very knowledgable about this item, among a plethora of electronics and awning knowledge.

Awning knowledge? Really? :lmao:

To answer the OP,
No. There is no discernable ride difference when the bags are at 5-10 PSI. The Airlift kit is the single most useful mod I've done to date, and cheap at $100.
 
I only notice a difference if I forget to air them out. Hands down the best mod for the money. I am surprised you are getting so little sag with your current setup. I have hooked up a two horse slant and loaded one gelding and that was a bit out of my comfort range for tongue weight (with heavier springs and airlifts). Then again, all trailers are different when it comes to weight distribution.
 
Installed the Air Lift 1000 and it definitely made a noticeable difference when our horse trailer was hooked up. The sag was pretty much eliminated. Inflating the bags to around 28 psi leveled the truck out front to back. You can especially notice the difference behind the wheel. No longer does it feel like you're looking up. Just after the install my wife took it to southern IN (600 miles round trip) to meet up with her mom for a weekend of trail riding with the horses. She said it definitely drove better on the highway. A very worthwhile mod and I agree that the air bags haven't really changed the normal day to day ride. If anything it's maybe a bit firmer.
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Glad to hear it worked out. Did you end up removing the springs to install or slip them between the coils?

Also, I've seen some people mention elsewhere that these can be installed with the nipple facing upwards so that it's easier to route the tubing. Anyone try that?
 
Glad to hear it worked out. Did you end up removing the springs to install or slip them between the coils?

Also, I've seen some people mention elsewhere that these can be installed with the nipple facing upwards so that it's easier to route the tubing. Anyone try that?
Don't install the the bag with the nipple facing upwards. It'll hit the bump stop and you'll have a bad time.

The easiest way to install is to remove the springs, but with enough elbow grease they can be slipped inside the springs without removing them.
 
Yeah, I get that the bump stop is there and I haven't looked at it personally yet. Is the middle not hollowed (or could it be drilled through the center)? Just seems like the air line would be more secured if routed through the top. Maybe I'm over thinking it though.
 

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