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

1999 LS400 rear suspension

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Old 02-22-11, 08:16 AM
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valex
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Default 1999 LS400 rear suspension

I am going to replace rear shocks on my 1999 LS (125K miles) with OEM. What else would you replace while you are there? (everything is original in the rear so fa on my car).
Old 02-22-11, 02:04 PM
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JimsGX
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Unless you're experiencing some symptoms / noises, I'd just do the struts/shocks and leave everything else alone.
Old 02-22-11, 02:32 PM
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radiokilla
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you could replace the ball joints if you feel like it.
Old 02-22-11, 04:15 PM
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RA40
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Check the rear strut and control arm bushings. Otherwise, just swap the struts out.
Old 02-22-11, 05:07 PM
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Kansas
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Are the shocks worn out at only 125K miles? The ones on my 00 LS are still like new at 135K miles and the ones on my 90 LS were still in great shape when I sold it at 183K miles.
Old 02-22-11, 06:02 PM
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RA40
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That is good longevity, mine were dead before 70K. After installing the springs in ours, I compressed the front ones to amuse myself. They didn't decompress at all. Barely enough dampening left in them, it was pretty easy to compress and extend them by hand. The rear was better but not by much.

Any signs of abnormal tire wear or alignment issues?
Old 02-22-11, 10:12 PM
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valex
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I just recently noticed the rear is sagging a bit and handling got worse ( rear shocks, I think). When going downhill on a highway ( I live in the mountains plus I started to carry a few sand bags in trunk this winter for better traction in snow) there is a bit of pulsation when stepping on brakes, no abnormal tire wear. I haven`t inspected any bushings yet, going to place an order online in couple of days, thought I might want to ask for a piece of advice on what else might need changing, so I can include the parts into the same order.
Are the Rear Control Arm Bushings availavle witout changing the whole arm?

\
Old 02-27-11, 12:19 PM
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brianmch
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Originally Posted by valex
Are the Rear Control Arm Bushings availavle witout changing the whole arm?

\
Check Diazen as they have several poly bushings for this series. I was just told mine needed the ball joints replaced @ $235 each + labor as they are with the control arms, which come with new bushings. Total bill to be around $1K. ouch. I'll probably do them myself.

Good luck.
Old 02-28-11, 08:41 PM
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billydpowe
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my two 99's have 162k & 148k and the shocks are very stable.
but when/if I need them, OEM only, to keep that Lexus ride.
Old 03-01-11, 02:17 PM
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steveski
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Agreed OEM is sure way to enjoy the soft ride.....125k is not out of the question for them to wear out tho......Could go with Bilstein if available for your year -- kidding as they would be a little rougher than OEM
Old 03-01-11, 02:34 PM
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PureDrifter
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the KYB are BARELY stiffer then the OEM, and about 1/2 the cost, with no significant difference in durability.....
Old 03-01-11, 02:49 PM
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steveski
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Good call why spend the big dollars on the OEM - I think KYB is a great alternative for sure
Old 03-03-11, 12:00 PM
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Lowdown
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Originally Posted by RA40
Check the rear strut and control arm bushings. Otherwise, just swap the struts out.
i'd try this out first.
Old 03-04-11, 05:04 AM
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HKSC430
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Default KYBs at the back...

Agree with trying the KYBs at the back, they are sweet.

(the KYB are BARELY stiffer then the OEM, and about 1/2 the cost, with no significant difference in durability.....)
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