LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Ls400 rear ss kit or "rca"

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Old 03-29-18, 09:40 PM
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93LS500
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Default Ls400 rear ss kit or "rca"

Anyone have a picture of one installed on a ls400 or celsior?

I have checked google and have checked this site several times, it seems all image links related to this are dead.
Old 03-29-18, 09:54 PM
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spuds
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93,if the missing links are to photobucket use Chrome or firebox browser and get the photobucket repair app downloaded.Fixes the broken links.
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93LS500 (03-29-18)
Old 03-29-18, 10:41 PM
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93LS500
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I had no clue that was a thing

thank you soooo much, that extension makes this website twice as good
Old 03-30-18, 10:54 AM
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for those that don't have the patch...like me haha!

rear "ss kit" made by youzealand are the pieces above, the lower pieces are for the front, called roll center adjusters (RCA).


what the rear "ss kit" does is relocate the rear lower strut mount away and down from the knuckle, effectively lowering the car slightly.
cars with extreme drops need this as the upper a-arm starts rubbing on the body of the shock since it's arched so extensively from being too low (read: cool guy points)!
Old 03-30-18, 01:39 PM
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EthanS
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I wouldn't call the ride height on my LS400 "extreme".

Would this rear SS kit benefit me in any way, even though my rear upper control arms don't contact the shock body (I don't think..)? Does it have any roll center adjusting/correcting attributes?
Old 03-30-18, 04:18 PM
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the rear kit is just a shock drop, afaik no roll center correction.
Old 03-31-18, 12:36 PM
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93LS500
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These are the best pictures I could find in the broken links





These appear to be custom ones on an ls400 not the youzealand but similar, i believe "sage" or "bold/brave world" made some too

I will try my best to get lots of detailed before and after pictures when I install rear shock drop kit and subframe risers today.
Old 03-31-18, 12:44 PM
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93LS500
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Originally Posted by EthanS
I wouldn't call the ride height on my LS400 "extreme".

Would this rear SS kit benefit me in any way, even though my rear upper control arms don't contact the shock body (I don't think..)? Does it have any roll center adjusting/correcting attributes?
I personally see the greatest benefit in using these with coilovers that arent height adjustable or on factory air ride systems.

my coilover (not made for an ls400) barely had a mm of travel before the bumpstop in the rear
with the kit installed it has about an inch of shock travel at the same ride height and the car drives much better
Old 03-31-18, 05:03 PM
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93LS500
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do you see the gap under the stock metal?


This one appears to point towards the ground and the one above almost looks like it points slightly upward where the bolts go in...there is also a little gap under where it mounts

Anyone have any install instructions or advice? My other LS also has a kit like this but it was installed before I bought it and I have no access to it right now to see if there is a gap.

any other installed pics would be appreciated
Old 03-31-18, 11:27 PM
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Here is a view of the SS kit on my '93. I apologize for the angle.
Old 03-31-18, 11:40 PM
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ucf31CRB63
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Originally Posted by 93LS500


do you see the gap under the stock metal?


This one appears to point towards the ground and the one above almost looks like it points slightly upward where the bolts go in...there is also a little gap under where it mounts

Anyone have any install instructions or advice? My other LS also has a kit like this but it was installed before I bought it and I have no access to it right now to see if there is a gap.

any other installed pics would be appreciated
Loosen both bolts, jack up the the suspension. Once the bracket is sitting on the SS kit, tighten the bolts. Hope this helps.
Old 04-02-18, 10:11 AM
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when i was on air i never ran anything like this in the rear and my car was fine when aired out.
yes it did slightly rub on the coilover body but nothing to cause concern.
if you are mildly lowered, there is no need for something like an ss kit, which is why they aren't too popular stateside.
Old 04-02-18, 05:27 PM
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The main reason SS kits were popular in Japan initially was as an affordable way to lower factory air suspension cars.
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