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Old 05-29-04, 11:13 PM   #1
srg
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Default 90-91 Ls400

Can the passenger side seat in MY90-91 be replaced with a later seat that has 10 way power?? Also what's the best size up for rims? 16 or 17? or? Best ride quality.

Pls advise.
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Old 05-29-04, 11:24 PM   #2
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It is unlikely that you will be able to fit a later model passenger seat into your '91 without some major modifications.

Stock wheels with stock tire sizes will give you the best ride quality. Going from stock 15's to 16's won't make as much of a difference in terms of ride comfort, but from 15 to 17+ will (due to the thinning of the sidewall of the tire as you move up in size and to more tire contact with the road if you're going with a wider wheel/tire). Just keep in mind that as you move up in wheel/tire size/width, you sacrifice ride quality.
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Old 05-30-04, 09:17 AM   #3
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Thanks Brian.

I had hopped to swap out the passenger seat with a later one. I would assume that the dimensions are the same and they woould sit on the same track.

Thxs also for the wheel /tire info. I'd probably go 16's max w/ a little wider Z's or W's.
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Old 06-02-04, 01:02 PM   #4
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A '93 - '94 seat will go right in. You'll get most of the adjustments you're wanting (just like the driver's seat ) - big improvement over the '90 - '92 passenger seat. The later seat has a different electrical connector but I was able to pull the wires out of the newer seat connector and install them into the earlier item. The wire colors match up fairly well. A wiring diagram would probably help.
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Old 06-02-04, 03:28 PM   #5
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Quote:
Originally posted by jmblimo
A '93 - '94 seat will go right in. You'll get most of the adjustments you're wanting (just like the driver's seat ) - big improvement over the '90 - '92 passenger seat. The later seat has a different electrical connector but I was able to pull the wires out of the newer seat connector and install them into the earlier item. The wire colors match up fairly well. A wiring diagram would probably help.
Oops..I thought he was referring to 2nd or 3rd gen LS's when he said later models because he mentioned 10 way power.

'93-'94 models have the same adjustments on the passenger side as the driver side? Including lumbar?
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Old 06-02-04, 11:23 PM   #6
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Thanks guys. Interesting. Now I need a mint gray leather 93-4 passenger seat.

By the way, is the cushion on a 90 drivers seat soft and spongy feeling. Mine feels really softly sprung. Is that normal?? Moves a bit in hard cornering. Not the whole seat, just the cushion.
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Old 06-03-04, 06:24 AM   #7
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My '90 seat feels soft and spongy too - with only 77k miles on it. I guess it's normal. I drove a '98 LS and loved the seats; much, much better.
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Old 06-03-04, 09:00 PM   #8
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Thanks POS. The spongy seat is only a drag in hard cornering. It also squeaks like bed springs going over bumps. I'll get used to it. probably shoot some wd-40 into the seat springs.
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Old 06-03-04, 09:28 PM   #9
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Quote:
Originally posted by POS
My '90 seat feels soft and spongy too - with only 77k miles on it. I guess it's normal. I drove a '98 LS and loved the seats; much, much better.
Wierd my 93 LS seats are hard as a rock. Guess they over compensated for the 90 soft seat
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Old 06-07-04, 01:17 PM   #10
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Quote:
Originally posted by spxChrome
Wierd my 93 LS seats are hard as a rock. Guess they over compensated for the 90 soft seat
Same here... my 94 seats are like cardboard.
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Old 06-07-04, 04:24 PM   #11
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lol, exactly... mine feel like they are made out of plywood and springs.
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Old 06-07-04, 04:24 PM
 
 
 
 
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