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  1. Viio

    I'm now on 35s with AHC

    Thanks! They're definitely a tight fit. Mods for this are: 1 inch spacers 1 inch body lift 1 inch sensor lift 2 inch sensor lift on back with King KTRS-79 springs (because I'll be towing) Trimmed mud flaps Trimmed front bumper 5mm trim on the pinch weld (didn't need to do the full thing)
  2. IndroCruise

    AHC C1762

    ...and consider what to do about Rear AHC pressures if necessary – spacers, or new OEM springs, or upgraded springs, or airbags (maybe King KTRS-79 springs already are in place (?), in which case expect low AHC pressures and a slightly more firm ride when there is no load in or on the vehicle)...
  3. IndroCruise

    AHC C1762

    ...over the 24 years, 400,000 kilometres of life of the vehicle. Presumably, the necessary checks and adjustments were made when KING KTRS-79 Rear springs were fitted? If AHC pressures have remained within the FSM-specified ranges, then AHC presures should not be a problem. I have KTRS-79...
  4. A

    AHC won’t go to high and feels bouncy

    incredible post! thank you so much for taking the time to reply! invaluable info. i will definitely adjust the rear sensor heights and do the cross-leveling - i'm guessing my measurements explain why my Front Right tire is wearing so much more than the Front Left!
  5. IndroCruise

    AHC won’t go to high and feels bouncy

    ...specifications. In answer to your questions, note also that upgraded springs (or torsion bars) with a higher spring rate (such as KING KTRS-79 coil springs) do not increase the ‘ride height’ of the vehicle. ‘Ride height’ is controlled by the Height Control Sensors and the Suspension ECU...
  6. krispykritter

    New to me LX470

    ...on the spring rates are summed up below Name Rate Free Length OEM 100 AHC Rear Springs 90 lbs/in OEM specs say ~19 inches King KTRS-79 130 lbs/in 17 3/8 inch (after 2 years of use) 80 Series LX450 150 lbs/in D 18 1/2, P 17 1/2 inches (used springs) 80 Series LC 170 lbs/in Didn't...
  7. ed94r

    Updating AHC system

    I have not read this read through, so forgive me if its covered. Not sure your ID and length, but the eibach motorsports catalog or the OME spring catalog may be your friend. Find your own rate and length to meet your needs. https://eibach.com/us/rt-2-catalog-downloads.html OME spring...
  8. krispykritter

    Updating AHC system

    ...with AHC are as follows (from memory.... no longer from memory): Name Rate Free Length OEM 100 AHC Rear Springs 90 lbs/in Didn't record King KTRS-79 130 lbs/in 17 3/8 inch 80 Series LX450 150 lbs/in D 18 1/2, P 17 1/2 inches 80 Series LC 170 lbs/in Didn't measure when I had them out
  9. krispykritter

    Updating AHC system

    I believe, if you're at stock height, the KTRS-79 springs will handle vehicle load fine. They may be shorter, but they are also stiffer so don't compress as much with the standard weight on them. Ditto with extra load in the rear. But, I added 2" poly spacers to my rear when I added the...
  10. Arkham

    Updating AHC system

    Refreshing the topic. How come the KTRS-79 springs (free coil height 430 mm) can fit plug-and-play TLC AHC rear coils (500 mm free spring height)? Isn't it going to drop the standrd height on the back a bit, then? Trying to get more AHC occasional load here (max +150 kg) so thinking about...
  11. hskb

    To change or not ??? My 200K miles 2000 LX470 for a lower mileage 06-07 model

    ...02/2023 added Air Down Gear Up SS1 sleeping platform. 02/2023 AHC fluid change -- Things i am about to do --- 03/2023 new King springs KTRS-79 03/2023 new 4 AHC accumulators (being shipped from Japan now) 03/2023 all new 4 arms (being shipped from Japan now) 04/2023 add Autohome Columbus...
  12. packeted

    OEM rear AHC coil springs LC/LX - are these the right parts?

    Good question but no, I'm not really planning to build out the rig - mainly just return it to tip top stock condition and get the ride quality like new. The OEM LC spring you mention, is that the LC OEM AHC spring? I'm wondering whether there is a difference between the LX and LC AHC springs...
  13. riffman12

    OEM rear AHC coil springs LC/LX - are these the right parts?

    I know this isn't what you're asking, but do you carry any extra weight over stock? A lot of guys opt for the aftermarket King KTRS-79 when they refresh their AHC system instead of getting new OEM springs. I did on my old LX. It's somewhere in between the spring rate of a OEM LX spring and an...
  14. hskb

    AHC / Springs / general questions for LX470

    so i figured the car is 23 yrs old and the springs need to be replaced, so I go with the king springs KTRS-79, and ARB OME80PR10 Old Man Emu 10mm bushing (same yellow color ) for the left spring. will need to read up on tech-stream. thanks
  15. IndroCruise

    AHC / Springs / general questions for LX470

    Suggest best to explore local eBay in USA for the Australian-made KING KTRS-79 springs. You may also want to try a direct inquiry to King Springs in Australia quoting the King Springs Part Number KTRS-79 and also mentioning the make (Lexus or Toyota), Model and Year of your vehicle. They should...
  16. hskb

    AHC / Springs / general questions for LX470

    Looks like quite a few members here using the king springs KTRS-79. I see them available on ebay with shipping costs of $80. is there some site in the US we can buy these? thanks I need to do more reading, and decide rather sooner than later so that i can install them at the same time the arms...
  17. jLB

    Improving Off road capability in AHC equipped AHC

    I believe that the flaw in that logic, is that (if my math is correct) the 28.87mm non-AHC bars are ~64% increase in stiffness over the 25.5mm AHC bars. That seems like a rather large jump, but good luck with your experiment. One of my “bitches” about this platform, is that everyone offers a...
  18. ClassyJalopy

    Improving Off road capability in AHC equipped AHC

    ...two softer settings make the truck bounce up and down a lot. So my thinking here is that slightly thicker springs (rears are already King KTRS-79) will support he AHC through out the motion range of the suspension and not just at the resting height. This should improve the ride and allow me...
  19. H

    King ktrs-79

    Where is the best place to buy these from? Tried a place on eBay and 3 weeks later they haven’t shipped and can’t provide an update. Anyone have a lead on where to get a set from in the US? Anyone got a set they aren’t using? Thanks in advance.
  20. oakleaf

    Calling all 03-07 LX470 owners, VGRS survey, please read!

    ...Body+bumpers+suspension all stock, AHC intact, except: - Full storage drawers+fridge system installed in rear - Rear Springs replaced w/ KTRS-79 - Roof rack=Eezi-Awn K9 Crossbars with ARB awning and light rifle case, no major roof weight added 1) I have NOT experienced strange steering...
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