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

1st gen vs 2nd gen upper control arms

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Old 07-01-13, 05:54 PM
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dc893
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Question 1st gen vs 2nd gen upper control arms

I have been shopping around to do the upper control arms on my 92. I checked rockauto.com and called the customer service number. I have always been under the impression that the control arms were different between 1st and 2nd gens. I have checked the Raybestos upper arms and they have the same part number for 90-00. Customer service says that is correct and they will work on all years.

So, are they the same or are they different? I am still thinking I am correct even after talking with customer service. Anybody out there with some more knowledge that can point out the difference?

I am very happy with the LBJ from Raybestos and hope those are in fact the right parts for the 1st gen.

part number 502-1200 and 502-1201

http://www.rockauto.com/catalog/more...764&cc=1187478
Attached Thumbnails 1st gen vs 2nd gen upper control arms-getimage.php.jpg  
Old 07-01-13, 06:03 PM
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timmy0tool
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a quick search from sewell lexus shows:

94 pass side UCA part number: 4861050020
95 pass side UCA part number: 4861059015

like the lower ball joint, it looks like they are NOT the same between 1st and 2nd gen. this does NOT mean it won't fit however.
Old 07-01-13, 06:14 PM
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dc893
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I am curious, as I do think the quality of Raybestos seems to be the best option. They did say if it doesn't fit I can get a full refund plus the shipping. Maybe I will just have to order one and see what happens. I mean the pictures of the parts look almost identical to me.
Old 07-01-13, 06:29 PM
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PureDrifter
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they definitely do not cross reference.
Old 07-01-13, 06:33 PM
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dc893
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Looks like it's down to Moog or Dorman now
Old 07-01-13, 07:03 PM
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timmy0tool
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why not go OEM? sewell gives a decent discount on the parts, though i understand it's still more than aftermarket but heck it's OEM.
Old 07-02-13, 04:39 PM
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dc893
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Still pricey and it's a 20 year old car.
Old 07-03-13, 12:56 AM
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LScowboyLS
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Originally Posted by dc893
Looks like it's down to Moog or Dorman now
of those two, these days, I am taking Dorman
Old 07-03-13, 03:17 AM
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j2b4o
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Even with discount I think the OEM is like 490$ or some absurd ish. My doorman fit like a glove and has lasted about 20kmiles so far without issues.
Old 01-28-15, 05:20 PM
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oldskewel
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I installed a Raybestos 502-1200 Professional Grade Control Arm and Ball Joint Assembly on my '91 LS400 today. Looked just like OE, and fit perfectly except the castle nut was a little too short (did not line up with the hole in the ball joint stud) so I re-used the old one.

So the fit is confirmed, and I highly recommend the part based on visual inspection. I don't expect any wear problems.
Old 01-29-15, 02:07 AM
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dicer
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Originally Posted by oldskewel
I installed a Raybestos 502-1200 Professional Grade Control Arm and Ball Joint Assembly on my '91 LS400 today. Looked just like OE, and fit perfectly except the castle nut was a little too short (did not line up with the hole in the ball joint stud) so I re-used the old one.

So the fit is confirmed, and I highly recommend the part based on visual inspection. I don't expect any wear problems.
did you do both sides? PN ?
Old 01-29-15, 10:24 AM
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oldskewel
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Originally Posted by dicer
did you do both sides? PN ?
No, just the right side. The left side is still tight. Raybestos PN for the left side is 502-1201. PN again for the right side is 502-1200.
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