Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - Rear Lower Control Arm Solid Bushing vs Rubber Bushing NVH

Infinity · 11-10-2019, 08:13 PM

The SPC rear lower control arms have a solid bushing they call the xAxis Sealed Flex Joint. SPC claims it performs like a pillow joint.

Can anyone with these control arms post if they have any increase in NVH over stock? Do they squeak? I rode in a friends car with several solid bushing suspension pieces and it was kind of noisy.

The Whiteline rear lower control arms come with synthetic elastomer bushings. These will most likely not make any noises. They end up being about $50 more expensive than I can get the SPCs for, though.

The SPCs also come with a toe kit. Is this necessary? No other RLCAs seem to come with one.

I know the SPC would not be legal for STX and the Whiteline would. Autocross is not really my primary concern, I am more worried about the NVH. If that ever became an issue I know there is a rubber bushing for the SPC made by DIFtech.

11-10-2019, 08:13 PM	#1
Infinity Senior Member Join Date: May 2016 Drives: 2016 Scion FR-S Location: Maryland Posts: 173 Thanks: 49 Thanked 39 Times in 29 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Rear Lower Control Arm Solid Bushing vs Rubber Bushing NVH The SPC rear lower control arms have a solid bushing they call the xAxis Sealed Flex Joint. SPC claims it performs like a pillow joint. Can anyone with these control arms post if they have any increase in NVH over stock? Do they squeak? I rode in a friends car with several solid bushing suspension pieces and it was kind of noisy. The Whiteline rear lower control arms come with synthetic elastomer bushings. These will most likely not make any noises. They end up being about $50 more expensive than I can get the SPCs for, though. The SPCs also come with a toe kit. Is this necessary? No other RLCAs seem to come with one. I know the SPC would not be legal for STX and the Whiteline would. Autocross is not really my primary concern, I am more worried about the NVH. If that ever became an issue I know there is a rubber bushing for the SPC made by DIFtech. Last edited by Infinity; 11-10-2019 at 08:26 PM.