LX570 tundra swap Hmwk

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okcfunky

10 Year
Joined
Sep 24, 2015
Threads
2
Messages
25
Location
OKC,OK
I'm just now turning 105k and my suspension has been beat to hell and back - more squeaks than a rat king. Lots of potholes, gravel & dirt roads, fields.

Im looking at:
(1) SPC tundra Uppers (and can weld on the AHC brackets... Not exactly sure where, but I surmise it can't be too difficult)
(2) moog lowers
(3) moog tierods
(4) cv axles either off a salvage or new reman.

My question
What are folks doing w/ respect to the AHC travel length? IIRC, I saw it being an inch shorter than the arm travel allows. Thoughts? Anything I should fabricate?

I'm half tempted to rip the AHC out and run king 2.5's for OEM tundra and lc200 pair outback...
 
I've not heard of anyone in the US removing AHC on their 200. It extremely integrated into the onboard systems. Unless you start swapping ECUs and other components I expect you'll have a dashboard that looks like Christmas all year.

If you want a lift the common options are an AHC sensor lift and you can add strut spacers and trim packers to give you a bit more. Combine that with new struts, shocks, bushings and maybe ball joints and you'll be good for a long time.
 
@linuxgod,
Thank you for that. I'm not familiar with trim packers, ill definitely look into that and try and get a bead on strut spacers. If that is the Occam's razor avenue, that'd buy me time for quite a while. This suv is up on deck for refresh once I finish rewiring the canbus on my other. So I got a couple of weeks to finish up my research an get parts in and ready.

I do NOT want to massively lift this thing beyond 2 inches. I like to pull into garages when hail is incoming.

I will check into going the LC/direct replacement route vs tundra part route
 
There's an AHC sensor lift thread around here somewhere. Start there.

For the front, Toyota sells a metal strut spacer. I think it still works with the LX. They're ~$75/pair IIRC. Some folks use these just to level the vehicle and get rid of the rake. Some use them in combination with trim packers (below) to get a small lift.

OME sells trim packers. Similar to the Toyota strut spacer, they're just rings that sit on top of the rear springs. Available various sizes (5, 10, 20mm).
 
Review my threads if you're interested in the Tundra swap and\or AHC delete.
 
linuxgod said:
I've not heard of anyone in the US removing AHC on their 200. It extremely integrated into the onboard systems. Unless you start swapping ECUs and other components I expect you'll have a dashboard that looks like Christmas all year.

If you want a lift the common options are an AHC sensor lift and you can add strut spacers and trim packers to give you a bit more. Combine that with new struts, shocks, bushings and maybe ball joints and you'll be good for a long time.
Click to expand...

Hey @linuxgod - both @Prime and @turbo8 have done it. The missing link was taking thee suspension control module out of the CANBUS gateway. Once you do that the LX behaves as if AHC was never there.
 
okcfunky said:
I'm just now turning 105k and my suspension has been beat to hell and back - more squeaks than a rat king. Lots of potholes, gravel & dirt roads, fields.

Im looking at:
(1) SPC tundra Uppers (and can weld on the AHC brackets... Not exactly sure where, but I surmise it can't be too difficult)
(2) moog lowers
(3) moog tierods
(4) cv axles either off a salvage or new reman.

My question
What are folks doing w/ respect to the AHC travel length? IIRC, I saw it being an inch shorter than the arm travel allows. Thoughts? Anything I should fabricate?

I'm half tempted to rip the AHC out and run king 2.5's for OEM tundra and lc200 pair outback...
Click to expand...

Likewise curious what's causing all the squeaks? Damage or wear? Surprised as the OEM suspension is going to be the quietest possible setup out there. Aftermarket arms, links, and bushings aren't exactly known to be quiet.

AHC travel length can be added to at the front. 1" more down travel can be had with the addition of the shock spacer
forum.ih8mud.com

Suspension Travel Comparison

Been meaning to do this to get some objective numbers to compare ride height versus droop travel versus compression travel. What better to do on a rainy day. Hope is that others may contribute and I'll update my table. We've known for awhile that some aftermarket suspensions increase what is...
forum.ih8mud.com forum.ih8mud.com
 
I've read through Prime and Turbo8's threads extensively, it's what has ticked my interest (and why the Tundra approach has me scratching my beard... would give a greater platform). That AHC discovery is huge in my opinion. The fact that the systems don't interlay is far more user-friendly than most brands (at least in my experience towards GM products as of last decade)... I hated trying to make CANbus spoofers.

@tbisaacs and @TeCKis300 Lot of washboard county roads, potholes from hell and not going slow is what I surmise. It is most definitely wear and on the high side of abuse.

I'll stay away from the aftermarket chunks and go with OEM lowers and an SPC upper and related. I'm used to delrin and UHWM for suspension pieces, but I'd prefer this to be a compliant and off-road friendly too despite doing 20K mi a year on it. Some more homework to research Thank you all for the wisdom!!
 
Last edited:
tbisaacs said:
Hey @linuxgod - both @Prime and @turbo8 have done it. The missing link was taking thee suspension control module out of the CANBUS gateway. Once you do that the LX behaves as if AHC was never there.
Click to expand...
Interesting, I missed that thread...
 
Not to revive an old thread but is there an advantage to going with aftermarket Tundra UCA's on a LX570 that retains AHC? Got a lead on some nearly new OEM Tundra UCA's.

I know the aftermarkets would probably allow more droop, but will the AHC shocks actually exceed the travel of the stock Tundra UCA's?
 
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