Front camber adjustment
02-09-12, 06:47 PM
#1
Front camber adjustment
So I've been researching and it seems as though the Lexus IS300/IS350 front upper control arms may be the same as the LS430. Both front upper arms use part # 48610/48630
Picture 1: LS430 front suspension
Picture 2: IS350 front suspension
Picture 3: IS300 front suspension
So if this is true, that should mean that adjustable upper arms are cross compatible. This also should mean the SPC adjustable ball joint will work as well.
Picture 1: LS430 front suspension
Picture 2: IS350 front suspension
Picture 3: IS300 front suspension
So if this is true, that should mean that adjustable upper arms are cross compatible. This also should mean the SPC adjustable ball joint will work as well.
02-09-12, 07:04 PM
#2
Son of a.... I knew I should have removed the Cusco FUCA's from my old IS300. Dammit!
If I can find the old stock IS300 arms, i'll see if they swap out or not. I have no idea if I still have them though.
Also, if memory serves, the SPC ball joints were a no-go for me when I was looking into those or adjustable FUCA's as they effectively raise the FUCA higher due to being thicker than stock, which in turn makes you more susceptible to FUCA and strut tower contact. Anyone with a slammed IS/GS/LS is familiar with ramming the RUCA's into the strut towers. lol
If I can find the old stock IS300 arms, i'll see if they swap out or not. I have no idea if I still have them though.
Also, if memory serves, the SPC ball joints were a no-go for me when I was looking into those or adjustable FUCA's as they effectively raise the FUCA higher due to being thicker than stock, which in turn makes you more susceptible to FUCA and strut tower contact. Anyone with a slammed IS/GS/LS is familiar with ramming the RUCA's into the strut towers. lol
02-09-12, 09:01 PM
#5
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this is intriguing. My only fear with the megan/cusco/godspeed arms out there is that when really low, the upper strut tower will need to be cut out a lot more.
Let us know how they are, and how much adjustment there is!
EDIT:
GS300 also utilizes the same front upper control arms, #48610/48630
SC300 also uses the same part number for rear upper, however they look different when comparing the two.
Let us know how they are, and how much adjustment there is!
EDIT:
GS300 also utilizes the same front upper control arms, #48610/48630
SC300 also uses the same part number for rear upper, however they look different when comparing the two.
Last edited by Mr.Doback; 02-09-12 at 09:09 PM.
02-10-12, 10:28 AM
#6
Hold on a minute. The five digit code in the picture is basically just the numeric "part name". Thus the right hand control arm part name is 48610G. An SC, LS or IS upper control arm is 48610. This doesn't mean that they're interchangeable or the same thing. The complete part number is different for an LS right hand control arm is 90173‑10012 and an IS is 48610‑59025 and an SC is 48610‑39085. All are very different parts.
02-10-12, 11:19 AM
#7
We're talking about LS and IS, not SC.
LS430 - 48610-59035 - ARM ASSY, FRONT SUSPENSION UPPER, RH
ISx50 - 48610-59065 - ARM ASSY, FRONT SUSPENSION UPPER, RH
IS300 - 48610-59025 - ARM ASSY, FRONT SUSPENSION UPPER, RH
So all parts #'s are slightly different. I know for sure that the IS300 upper arms will work on the ISx50. It's not an exact part # match, but that doesn't mean it won't work.
LS430 - 48610-59035 - ARM ASSY, FRONT SUSPENSION UPPER, RH
ISx50 - 48610-59065 - ARM ASSY, FRONT SUSPENSION UPPER, RH
IS300 - 48610-59025 - ARM ASSY, FRONT SUSPENSION UPPER, RH
So all parts #'s are slightly different. I know for sure that the IS300 upper arms will work on the ISx50. It's not an exact part # match, but that doesn't mean it won't work.
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02-10-12, 11:35 AM
#8
I used the SC just as an example. If the full part number is different then the part number is different. Some holes and/or dimensions MAY be the same but similar part numbers don't mean anything.
02-10-12, 07:23 PM
#10
Gen1 and Gen2 IS uppers are NOT compatible. Different ball joint tapers. Not sure on the LS.
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Redefining Lexus Aftermarket Parts Since 2001
-- We are your Lexus suspension experts--
BCR - KW - PENSKE - OHLINS - HKS - GREDDY - STANCEPARTS
Links - Arms - SuperPro Poly Bushings - Solid Bearing Conversions - Motor Mounts
RB BBK's and 2P Rotors, G-Loc pads, Radium Fuel Systems
Custom Fabrication Design and Machining - Industrial 3D Printing - Laser Cutting
2018 USTCC Sportsman Class Champions - 2018 NASA ST5 National Champions
02-13-12, 07:25 PM
#13
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Just go with Nagisa.... It's expensive but you know it's proven. I've been running Nagisa FUCA and RUCA and Toe arms without any issues or worries. Sometimes you really just have to pay to play, no getting around it.
