Lexus 570 - after market bumpers

[1world1love]

Bit tangential, but in the first photo it’s interesting to see the difference between how the body and bumper flex. Can see why it is important to leave the proper amount of space between the two at installation time.

Yeah, when we looked at these shots it was the first thing we all noticed. Somebody got another shot flexing the opposite way as well where it is pretty obvious that the trim is getting compressed between the bumper and body panel.

while this may be an extreme example, I think this probably plays out in normal driving as well, though maybe in shorter bursts.

 

[teejnut]

Its more straightforward than you think. Ironman bumper, winch, sliders, 34x11.5 tires. Most any front bumper will fit. Sliders have to deal with AHC but there are now 3 vendors making them. Rear bumper you have to work around AHC pump but many have made it work. Slee makes a 570-specific option, CBI will if you call them, and the ARB will fit as is (no side wing brackets).

Who are the 3 vendors making AHC sliders? Slee, MT, and ?

 

[1world1love]

Who are the 3 vendors making AHC sliders? Slee, MT, and ?

Answered a couple of posts above - Slee, Metaltech, and CBI

 

[grinchy]

At least there can be a discussion on LX bumper fitment now. When I got my rig there was @Ohnoitsbreaux that had front and rear bumpers, and a couple other LX with front only. Fitment was proven but not widely adopted.

Now there are three or four vendors for rear (RLC (with custom bracket), Slee, Dissent, ARB, Trail Tailor), and a pretty large number for front (CBI, Dissent, ARB, Ironman, TJM, even a Rhino 4x4 (custom))

 

[TexasPat]

Yeah, when we looked at these shots it was the first thing we all noticed. Somebody got another shot flexing the opposite way as well where it is pretty obvious that the trim is getting compressed between the bumper and body panel.

while this may be an extreme example, I think this probably plays out in normal driving as well, though maybe in shorter bursts.

Did the installation guide give you a minimal spacing instruction?

 

[1world1love]

Did the installation guide give you a minimal spacing instruction?

My install was the guinea pig for Dissent for LX fitment of the 200 series bumpers so they did everything at their shop.

@radman was the first to take on a self-install so he may be a better person to ask what was (or wasn't) in the installation guide

 

[radman]

Ha! I’m still not running any bulb trim, but I think the black on black let’s me get away with it...

Ben (dissent) recommended 5/8” gap to allow for the 1/2” bulb trim plus 1/8” air gap. He doesn’t like to have the bulb trim touch the bumper because it will eventually rub through the powder coat.

 

[slipkid13]

+1 on Dissent:

View attachment 2608937
View attachment 2608938

In your first photo there is a significant gap on the passenger side where the plastic meets the metal bumper. Is this the weight of the bumper pulling down because the wheel is off the ground? The drivers side is a perfect fit.

 

[1world1love]

In your first photo there is a significant gap on the passenger side where the plastic meets the metal bumper. Is this the weight of the bumper pulling down because the wheel is off the ground? The drivers side is a perfect fit.

Like MTExplorer mentioned above, this is just a function of how the frame and body normally flex. You would not see this with stock bumpers because they are shrouded in decorative plastic and all of the body panels and plastic trim are designed and attached in such a way to minimize the effects of normal body flex.

Most aftermarket (and many OEM) bumpers essentially operate as direct extensions of the frame.

 

[TexasPat]

I was seriously looking at the CBI front bumper but then I noticed that the years are marked 2010 to 2012. Mine is a 2009. I called and the gentleman that answered says he will look into it, but has anyone put a CBI front bumper on a 2009 or older 570?

 

[TexasPat]

Those Dissents look nice as well! I sure wish everyone wasn’t three or 4 months out for production!!
Slee definitely has some good stuff out there, but WOW they are mighty proud of the work! $$$. Time to sell some plasma!

 

[grinchy]

I was seriously looking at the CBI front bumper but then I noticed that the years are marked 2010 to 2012. Mine is a 2009. I called and the gentleman that answered says he will look into it, but has anyone put a CBI front bumper on a 2009 or older e

The generations are
2008 thru 2011
2012 Great Recession no production
2013 thru 2015
2016 on.
a 2008 and 2011 should have the same body panels. There might be some minor plastic difference, it’s a trim fit bumper so I can’t imagine it would matter too much.

 

[radman]

2012 Great Recession no production

Great Recession? I always assumed it was due to the tsunami...

 

[grinchy]

Great Recession? I always assumed it was due to the tsunami...

Could be both?

 

[TexasPat]

The generations are
2008 thru 2011
2012 Great Recession no production
2013 thru 2015
2016 on.
a 2008 and 2011 should have the same body panels. There might be some minor plastic difference, it’s a trim fit bumper so I can’t imagine it would matter too much.

Their customer service representative said it may have something to do with the location of the air intakes. He’s checking on it currently

 

[terdrocket]

Great Recession? I always assumed it was due to the tsunami...

Twas Godzilla

 

[TexasPat]

All I’ve done was adjust the front height sensor to raise the nose about 1.5”. Height control functions normally otherwise.

How did you do reprogram it?

Is it possible to raise it anymore than that, but still allowing it to rise higher with the controls?

What size tires are you running? I was thinking about 33.5x12.50. I’ve read another forms that I shouldn't need to adjust anything besides the suspension to run this size tire (34 would be max)

 

[tbisaacs]

How did you do reprogram it?

Is it possible to raise it anymore than that, but still allowing it to rise higher with the controls?

What size tires are you running? I was thinking about 33.5x12.50. I’ve read another forms that I shouldn't need to adjust anything besides the suspension to run this size tire (34 would be max)

You can change the offset in tech stream or just adjust the sensor. It takes 5 minutes and height control still functions normally.

LX570 AHC height modifications (lift it!)

forum.ih8mud.com

I’m running 295/70/18. It’s an easy fit but will require cutting some plastic.

 

[TexasPat]

Its more straightforward than you think. Ironman bumper, winch, sliders, 34x11.5 tires. Most any front bumper will fit. Sliders have to deal with AHC but there are now 3 vendors making them. Rear bumper you have to work around AHC pump but many have made it work. Slee makes a 570-specific option, CBI will if you call them, and the ARB will fit as is (no side wing brackets).

View attachment 2608655

Are you able to get up to a 34” tire if you adjust front AHC 1.5” like you said?

Is it possible to lift the entire car 1.5” and just allow the AHC to work normally

 

[radman]

Are you able to get up to a 34” tire if you adjust front AHC 1.5” like you said?

Is it possible to lift the entire car 1.5” and just allow the AHC to work normally

Keep in mind that lift does not affect tire size ability with IFS.
you can run a 275/70/18 with no spacers and no rubbing. With 1.25” spacers, you’re changing your offset and scrub radius, and you’ll rub a bit (but don’t worry, only plastics (easy fix)).

You can “sensor lift” the physical sensors to gain ~1”, and then use the Height Offset Utility in Texhstream to gain another ~.5”...and AHC will operate normally in all 3 height settings. However, some have experienced rougher ride with the increased AHC height.
To push the AHC to the limits, you can fit 305/70/18’s (34.8”), but you start getting into a lot more massaging of plastics and pinch welds. There’s a really good thread about fitting 35’s on an LX, which I’ll link when I find it. In the meantime, here’s some minor flexing on 35’s (high mode)


LX 570/ AHC Wheel and Tire Info and Pics - https://forum.ih8mud.com/threads/lx-570-ahc-wheel-and-tire-info-and-pics.1215791/

Fitting Full Fat 35x12.5 on an LX

Join along as I work through making the necessary clearance mods for 35x12.5R20s tires on my LX. These Toyo AT3s spec out to be 34.5" x 12.5". If you have any suggestions, I'm interested in hearing. Note that this fitment is specific to the LX as it's easier to fit larger and wider tires...

forum.ih8mud.com