PatDowdNC

Tires wear out between 20-25k even after I do an alignment at time of tire purchase. I used to get between 35-40k. Tires wear out at 20-25k whether I purchase an expensive tire or a moderately priced tire...any ideas why or is this the norm...….mileage 205,000.

bbaugher47

Front and rear? Or just the front? You may have some worn suspension components. Front LCA bushings could need replacing . Maybe upgrade them to RRRACING or Figs. You could also get RCF or GSF bushings as well.

2013FSport

iTrader: (2)

JM2C and many will disagree but running the name plate OEM pressures won't get you 40,000 mi. The fronts are to low and the rear too high. If the shop happens to leave it toed-out even a little AND its not freeway car, the inner edges will be gone on the front. Add about 4 psi to the front and drop at least 2 psi from the rear if running around empty (1 person DD). And try not to spin the rears!

Follow the post above. RC-F, or one of the polyurethane products for the front LCA will help reduce wear.

alphaking

I installed the RRRacing LCA bushing assemblies on my '12 AWD and the tire wear problem is completely gone.

Heagy80

And can anyone recommend the exact part number that will fit the 15 IS for RCF bushings? Just want to make sure they are the right fit. Thanks

davidbusta

iTrader: (1)

4807524010
4807624010

Heagy80

even though the site says they won’t fit.. is that simply because it is designated for the RCF?

i will have a shop put them on and want to be sure nothing else is needed for install. Thx

davidbusta

iTrader: (1)

Yeah itll say they wont fit because its not meant for anything else other than the RCF. The site will say that on many different interchangeable parts from different cars even though itll work. But itll fit with no problems.

nitroracer

Just to be clear, here, the consensus is that the RC F bushings don't increase NVH, while the other aftermarkets do?

I'd like to do this upgrade but not at the risk of any additional NVH, even if it gets me a few thousand more miles from my tires.

B00M3R

iTrader: (1)

I have the RCF bushings and have not noticed any additional NVH from them at all.

15IS350

When I look at these at rr-racing.com I see them at $348 for the pair. If I put the part numbers in on eBay I see them at about $65 a piece. Are the part numbers listed for the OEM bushing? Also I thought the USRS steering was an option on the Lexus. Can we use the better bushings either way? I want to get them. Overtime if they will pay for themselves if they extend tire life. Thanks.

davidbusta

iTrader: (1)

the ones you see on rr racing website are polyurethane bushings. Those will eliminate inner tire wear but it can also increase NVH in your car and will need to be regreased every so often. They will also give you a better steering feel when going through curves and turns. If you want to eliminate inner tire wear and improved handling then you should get the rr racing ones but are a bit on the expensive side.

There are the RCF bushings which are the the part numbers I listed. I believe I got mine for $60 each so a total of around $120. These will help eliminate inner tire wear similar to the rr racing bushings. But the difference being what they are made of. These are made of rubber similar to the stock ones but are a bit stiffer. But being that they are rubber they will not increase NVH. The way the car handles will improve but not drastically like the polyurethane one will. Will ride very similar to stock.

It all really depends if you’re also looking for better handling and willing to pay the extra money. My primary purpose for the bushings was to eliminate the inner tire wear so I decided to save the $250 and get the RCF bushings which will eliminate inner tire wear which was my focus. The better handling would of been cool but it was too much more money than I wanted to spend. If the RCF wasn’t known to be a good alternative I would of gotten the polyurethane bushings. But I wanted to save a little bit of money.

15IS350

Thanks for the great explanation. I’m pretty happy with the handling and really just wanted to help eliminate the inner tire wear. It’s good to know I can accomplish that with the less expensive bushings.

2013FSport

iTrader: (2)

I also have them. It was mentioned up top, bump the tire pressure up front to 38 40 PSI. With the right toe setting for your usage and style, you'll be set.

kyoyagami

recently purchase a 2018 IS300 (non f sport). Saw the uneven tire wear during test drive thought it was a previous owner thing - drive aggressively

Is this the correct part? https://shopfigs.com/v3/by-vehicle/c...-3GS%20AWDLCA1

Thanks a bunch folks!