IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

Bushings Question

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Old 07-10-20, 03:25 PM
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VapeDude
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Default Bushings Question

Hello

I am new to this forum and I need to replace my Lower Control Arm bushings and just wanted to make sure I am ordering the correct part. The part number I think it is 48075-30030 and 48076-30030.

Also should I go OEM with them or would it be better to get performance bushings?

Attached a picture I took for reference on the part



Old 07-10-20, 04:42 PM
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AMIRZA786
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I would go with RR Racing LCA polyurethane bushings. I have an extensive thread on it with full explanations on why. I believe it's titled F Sport sway Bar questions, or something similar
Old 07-10-20, 05:39 PM
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primavera
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Or install factory RC-F bushings for the fraction of the polyurethanes and never deal with any squeaks...

https://www.clublexus.com/forums/is-...l#post10338780
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Old 07-10-20, 07:03 PM
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Where could I find those?
Old 07-10-20, 07:18 PM
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AMIRZA786
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Originally Posted by VapeDude
Where could I find those?
The Lexus dealership
Old 07-10-20, 07:21 PM
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AMIRZA786
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Originally Posted by primavera
Or install factory RC-F bushings for the fraction of the polyurethanes and never deal with any squeaks...

https://www.clublexus.com/forums/is-...l#post10338780
You had to ruin my fun, didn't you? BTW, RR Racing support told me that unless you abuse them by frequently tracking your car, they don't need to be re greased for a few years
Old 07-10-20, 07:40 PM
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Sorry to bother again man, Im outside of the USA and Lexus dealerships here don't have or is too expensive. I plan on ordering online and doing the job myself. I checked on mylparts but it says it won't fit my 2007 IS350. Can you confirm I am getting the correct model? I plan on ordering tonight. Here's the link https://www.mylparts.com/oem-parts/l...ket-4807624010

Much appreciated!
Old 07-10-20, 08:36 PM
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Originally Posted by VapeDude
Sorry to bother again man, Im outside of the USA and Lexus dealerships here don't have or is too expensive. I plan on ordering online and doing the job myself. I checked on mylparts but it says it won't fit my 2007 IS350. Can you confirm I am getting the correct model? I plan on ordering tonight. Here's the link https://www.mylparts.com/oem-parts/l...ket-4807624010

Much appreciated!
The reason it says that is because it is for an RC-F, so it wasn't intended to go on an IS. But it should fit. I currently have a part from an ISF on my IS350 (steering ECU). According to the Lexus dealership website, if I put in the part number it will tell me it's not compatible, when in fact it's installed and working. Others who have it installed can weigh in, but from all posts I've read it will work. I hope that helps
Old 07-10-20, 09:01 PM
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Originally Posted by AMIRZA786
The reason it says that is because it is for an RC-F, so it wasn't intended to go on an IS. But it should fit. I currently have a part from an ISF on my IS350 (steering ECU). According to the Lexus dealership website, if I put in the part number it will tell me it's not compatible, when in fact it's installed and working. Others who have it installed can weigh in, but from all posts I've read it will work. I hope that helps
Awesome, Thanks! Order placed.
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Old 07-10-20, 09:10 PM
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Originally Posted by VapeDude
Awesome, Thanks! Order placed.
Let us know how it goes!
Old 07-11-20, 03:14 AM
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Originally Posted by VapeDude
Sorry to bother again man, Im outside of the USA and Lexus dealerships here don't have or is too expensive. I plan on ordering online and doing the job myself. I checked on mylparts but it says it won't fit my 2007 IS350. Can you confirm I am getting the correct model? I plan on ordering tonight. Here's the link https://www.mylparts.com/oem-parts/l...ket-4807624010

Much appreciated!
You did order both sides right? since you only posted one link with one part number. the driver and passenger sides have different part numbers just a FYI. I just want to make sure you didnt order 2 of that part number. The other part number for the other side is: 48075-24010
Old 07-11-20, 06:59 AM
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Discountpartsmonster.com. They’re awesome and cheap.
Old 07-11-20, 08:24 AM
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You can look at my post for more info:
https://www.clublexus.com/forums/sus...placement.html
Old 07-11-20, 02:00 PM
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AMIRZA786
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Originally Posted by primavera
Or install factory RC-F bushings for the fraction of the polyurethanes and never deal with any squeaks...

https://www.clublexus.com/forums/is-...l#post10338780
I'm curious why you mentioned that the Polyurethane bushings squeak. I've had them installed almost a month and they don't make any more noise than the stock. They are a bit stiffer in the front and do allow a little bit more NVH, but nothing that anyone would really notice. Although if I had known that you could install RC-F bushings (especially if they are are a fraction of the cost) I probably would have gone that route instead
Old 07-11-20, 02:30 PM
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Originally Posted by AMIRZA786
I'm curious why you mentioned that the Polyurethane bushings squeak. I've had them installed almost a month and they don't make any more noise than the stock. They are a bit stiffer in the front and do allow a little bit more NVH, but nothing that anyone would really notice. Although if I had known that you could install RC-F bushings (especially if they are are a fraction of the cost) I probably would have gone that route instead
In due time the grease will be displaced and the sleeve rotating in the poly will make a horrendous squeak. Even poly sway bar bushing suffer this fate. I equipped the whole car with poly and not only can it squeak, it also gets stiction as the silicone grease ***** up and basically makes the suspension stick in place.

I drilled and tapped all the joints for grease fittings and pumped in silicone to free it and eliminate the noise. Nothing against them but it has far less to do with racing than it does time. Time will displace the grease as will moisture.

Just saying, I've been there and done that and it's why mine has RC-F LCAB....


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