i would be changing the bushing and i did check out the website
not sure which one to get? the 90 or the 80 polyurethane
i do not track me 2015 RCF but some back canyon sprint one a blue moon
thanks

 

@marucus1 I chose to go with RR Racing over FIGS since RR Racing is zero deflection while the FIGS is not. I went with the 88 Durometer for the RR Racing as opposed to the 90 durometer. Add to that, mine are zero deflection and honestly, it still feels very OEM. You do feel a difference, but after a couple of drives, I forgot the LCA bushings are even on them. Sometimes I regret not getting the 90 durometer ones. No unpleasant harshness, vibrations, NVH etc. Just feels very OEM. Some other Lexus cars like ISF have terrible vibrations, shaking and harshness that the owners end up going back to OEM. My belief is that the chassis is so stiff for the RCF that the added stiffness does not propagate to the chassis as it is so tight with no give to vibrate.

So all in all, I would recommend going with the 90 if you are going FIGS since they are not zero deflection. Even with 90 on the durometer, you would not feel a signficant difference. You will notice it in the first few drives, but then it will not remind you of it. If you wanted to go RR Racing then 88 is a safe choice as it feels very OEM unless you want significant stiffness on the front axle then then 90 would be the one to get.

 

I have not seen complaints from ISF owners Before my LC, I had an ISF with RRRacing LCA bushings and noticed a slight increase in NVH, but again, very slight. The many positives of the bushings more than made up for that small negative

Lou

 

Nice. Good to hear they worked well for you. Back in the day, I used to read up a lot before pulling the trigger. Since the ISF community was the most evolved at the time, I used to read up a lot. I recall reading horror stories on the IS/ISF forums, which is why it took me so long to pull the trigger. I took a screenshot of a sample of one I could find.

Funny, on the RCF the bushings barely make themselves noticeable. Practically zero NVH. I don't even remember them while driving and only when someone brings them, I recall I have bushings. It is funny how OEM they feel. Granted, I have not tried the 90 durometer one, but the 88 durometer with the zero-deflection thrust washer, feels extremely OEM. Sometimes I wish I had gone 90 durometer route as they would have been more aggressive and thus, more noticeable.

 

^^^^OK - That's one guy five years ago. I guess I missed that one

Lou

 

I'd stick with the firmest bushing either Figs or RR offer. Avoid the solid mount style if this is a street car.

 

When people are saying "zero Deflection," they are referring to the thrust washer that you see at the top of this image. With the thrust washer preloaded using the side bolts, it prevents the control arms from having an Axial Deflection. This is not available on any other option. We added this feature in and if you watch the GoPro Videos on our product page, you can see that it actually works!

https://www.rr-racing.com/Lexus-Lowe...isfxlca001.htm

 

We can sell you just the inner red bushings if you'd like. you will just need someone to press the old ones out and new ones in.

-Justin

 

Ah thanks very much. Yeah, I remember now the bushings can be sold separately from the housing. I will look into that and see if a place can press the bushings into the housing. Cheers!