I am looking to replace the worn LCA bushings on the front end of my '06 350 Sport Package. I was just going to go with the OEM zero offest part but I had some questions. I had read else where on here that they were the same regardless of side, but looking online I see two different part numbers for left and right (4807530030 / 4807630030). What's the deal with that?

Also, are they the same part for RWD and AWD models?

 

I don't know much about the OEM bushings to be honest but as a suggestion, why not just go with the USRS from RR-racing? They improve the feel and handling of our cars (according to what member have said anyway). This way you not only replace your worn bushings but also upgrade at the same time.

 

I've read where a lot of people upgrade to those or the Figs, but they're over 5 times what I can get the OEM bushing for. I'm just not that concerned about it for a vehicle I drive up and down the freeway in.

 

^Have you experienced any irregular front inner tire wear? The aftermarket poly LCA bushings fix that.

 

I just started to see some inner tire wear, that's how I found the worn bushing. Actually can't visually see the tire wear, but I can hear it beginning at low speed. That's what brought on the shakedown to look for a problem.

It has always worn tires just fine with the factory setup until recently.

 

^The soft OEM bushings allow for suspension geometry changes during braking and cornering, thus leading to the inner tire wear. Well known problem alot of 2IS owners notice within 30k miles of ownership sometimes.

Watch this video showing the differences between a solid bushing vs the OEM bushing :

 

LH and RH are definitely different, so make sure you get one of each.

The parts are the same for AWD and RWD.

Jeff

 

I have a pair that came off my ISF when I upgraded to the RRRacing LCA Bushings. PM me if you're interested.

Lou

 

Yeah, I've read about that. But I'm at 120k miles now and it is just now starting to show the signs of weakness. I don't do any spirited activity with this car anymore, it's been relegated to grocery getter/commuter for me. I mostly drive my new Tundra on the weekends and have a dedicated car for the fun times. That's why I'm not really looking to upgrade, just fix it. This car has about served it's purpose for me anyway, surely getting close to an upgrade.

Thanks, that's what I was looking for.
What is the difference is between the F and x50 units?

 

^^^^The ISF unit is a bit stiffer. Otherwise no difference.

Lou