UL stock air suspension to steel springs conversion infos
#31
FYI, you do not have to remove the rear shelf, assuming the air shocks mount the same way as the standard shocks. Just pop out the 2 little plastic rivet thingees near the center of the rear shelf and lift the front of the shelf enough that you can get your hands in there. I propped mine up with a large diameter flashlight laying on its side, which doubled as a light source to see wtf I was doing in there.
While it is possible to do it without removing the rear shelf, I prefer removing it to give me more room to work with. I hate working on cars, I want to make it as easy as possible. Also even though the air shocks mount the same way as the standard shocks, the cover on top of the air struts is quite a bit taller then the regular cover due to the stepper motor being there, so the rear nut on the air struts are quite a bit harder to get to then the regular struts. I had my stereo shop removed the C-pillar interior panels and the rear shelf, it took them 3 minutes, makes me looks like an idiot
I swapped in the 2 front struts today, zero surprise, everything bolt right in, the top and bottom mounting locations for the air and standard struts are identical.
One thing I learned today, Lexus did a REALLY good job to make sure the air line never comes out of the air struts, it doesn't come off even with me pulling on it as hard as I can, I gave up and just cut the lines!
I'll swap out the rears tomorrow, the rear looks easier then the front, so I'll be done with it tomorrow
Last edited by BNR34; 04-12-09 at 10:15 AM.
#34
It just "looks" easier to me, I could very well be wrong, I won't know until I do it, it just looks like there are less stuff in the way.
I could not get the fronts on today until I unbolted the lower ball joint bracket. At least now I know the SS kit is super easy to install
I'll report back tomorrow.
Last edited by BNR34; 04-12-09 at 10:09 AM.
#35
Steel springs conversion is done, done done done, I am so happy!
I did the 2 rear struts today, my guess was right, the rears are easier for me, you do have to push the lower arm down to get the shocks in, but it aren't bad, easier then the fronts for me. I guess it is personal, not important anyways.
It drives SO GOOD, exactly how I imagine it and exactly the way I wanted. Quite a bit firmer then the air but is still perfectly comfortable. Now I am 100% sure I prefer the feels of steel springs over the air springs, I am so happy!!
The ride height is higher then I expected, but it is brand new springs with brand new struts, so it will settle some. Plus the heavy ultra rear seats are still out of the car, so that will bring down the car some once I put them back in.
No warning light or message what so ever, like I said before, all I did was pull the air compressor's fuse, so the air compressor is disabled now. I am guessing if I unplug or pull the air suspension ECU's fuse, that would trigger some kind of warning light or message. All I care is to disable the air compressor, so this is good enough for me. The air suspension ECU can think all he wants The air compressor's fuse is in the fuse box right next to the battery in the engine compartment. Look in the back of the fuse box cover to see the location of the fuse, it is the 2nd small one from the right.
That's it for now, I need to sleep, let me know if anyone got any questions.
The entire conversion is successful, no surprises
I did the 2 rear struts today, my guess was right, the rears are easier for me, you do have to push the lower arm down to get the shocks in, but it aren't bad, easier then the fronts for me. I guess it is personal, not important anyways.
It drives SO GOOD, exactly how I imagine it and exactly the way I wanted. Quite a bit firmer then the air but is still perfectly comfortable. Now I am 100% sure I prefer the feels of steel springs over the air springs, I am so happy!!
The ride height is higher then I expected, but it is brand new springs with brand new struts, so it will settle some. Plus the heavy ultra rear seats are still out of the car, so that will bring down the car some once I put them back in.
No warning light or message what so ever, like I said before, all I did was pull the air compressor's fuse, so the air compressor is disabled now. I am guessing if I unplug or pull the air suspension ECU's fuse, that would trigger some kind of warning light or message. All I care is to disable the air compressor, so this is good enough for me. The air suspension ECU can think all he wants The air compressor's fuse is in the fuse box right next to the battery in the engine compartment. Look in the back of the fuse box cover to see the location of the fuse, it is the 2nd small one from the right.
That's it for now, I need to sleep, let me know if anyone got any questions.
The entire conversion is successful, no surprises
The following 2 users liked this post by BNR34:
stuckincal (02-07-20),
yick99 (09-03-23)
#37
So anyone that don't mind taking a chance and want to save some money, each GR2 are $50~$75 cheaper then the OEM sport struts.
And if the car don't get low enough after the springs settle, I will get the You Zealand SS kit.
#38
Lexus Fanatic
funny, when they mentioned the LS in the recent automobile magazine article the only problem they noted was with the upgraded air suspension. I wonder if the problem continues with the newer LS models
The following users liked this post:
stuckincal (02-07-20)
#41
Those cars are not that old, and few of those cars have high mileage yet and they are all still under warranty, which means the dealer replace whatever go bad quickly, so people complain less. Wait til they are older, I am sure they are just as problematic as the LS430.
I read one thread where the dealer kept replacing air suspension components on a LS460L and still couldn't make it works right, everything was replaced, sensors, ECU, struts.....etc, the owner was tired of bringing the car in.
Which is why I decided to rip out my air suspension, it is the only way to get rid of all the problems once and for all.
Last edited by BNR34; 04-13-09 at 09:14 AM.
#44
Pole Position
"It drives SO GOOD, exactly how I imagine it and exactly the way I wanted. Quite a bit firmer then the air but is still perfectly comfortable. Now I am 100% sure I prefer the feels of steel springs over the air springs, I am so happy!! "
BNR34,
Glad to hear that you like the conversion and that you are happy with the ride. Quite a bit of work there but in the end it's all good. Congrats!!!
Does the new system lean/sway when you are going around curves and pushing it a bit? My 05 sport sits perfectly flat when taking a curve and I really like it that way. I would think yours would do the same.
BNR34,
Glad to hear that you like the conversion and that you are happy with the ride. Quite a bit of work there but in the end it's all good. Congrats!!!
Does the new system lean/sway when you are going around curves and pushing it a bit? My 05 sport sits perfectly flat when taking a curve and I really like it that way. I would think yours would do the same.
#45
Yeah I know, I don't want to post pics until I get the rear seats back in, and I want to let the springs settle more, I can see it dropping as times goes by. It sit so high yesterday, it is just a hair lower then a stock one, it is pointless to show pics, it looks almost stock.
Thank you, I am glad as hell, I haven't driven the car in 2 months! Driving my STi everyday is painful
Nothing to worry about now, all the questions are answered.
Thank you, I am glad as hell, I haven't driven the car in 2 months! Driving my STi everyday is painful
Nothing to worry about now, all the questions are answered.