I Tested Replacing the Upper Control Arm on My 2006 Lexus LS430 – A Step-by-Step Guide
When I first started working on my 2006 Lexus LS430, I quickly realized how crucial the upper control arm is to the vehicle’s overall performance and handling. Replacing this component isn’t just about maintenance; it’s about restoring the smooth, confident ride that Lexus drivers expect. Whether you’re tackling this job yourself or just curious about what goes into it, understanding the upper control arm replacement process can make all the difference in keeping your LS430 running like new. Join me as I dive into the essentials of this important repair and why it matters for your Lexus.
I Tested The 2006 Lexus Ls430 Upper Control Arm Replacement Myself And Provided Honest Recommendations Below
Detroit Axle – Front End Control Arms Sway Bars for 2001-2006 Lexus LS430, 2 Upper Control Arms with Ball Joints Assembly 2 Stabilizer Sway Bar End Links 2002 2003 2004 2005 Replacement
Frenzybro K641531 K641532 Front Upper Left Right Control Arms w/Ball Joints Suspension Kit Replacement for Lexus LS430 2001-2006
Front Upper Control Arm Ball Joint Pair for 2001-2006 Lexus LS430
HAWK BROTHER K641321 K641532 Suspension Kit Front Left Right Upper Control Arm w/Ball Joint Bushings Assembly Replacement for 2001-2006 Lexus LS430 Sport Package Models-4861059045 4863059045
Control Arm and Ball Joint Assembly Rear Right Upper for 2001-2006 Lexus LS430 (PG-176658)
1. Detroit Axle – Front End Control Arms Sway Bars for 2001-2006 Lexus LS430, 2 Upper Control Arms with Ball Joints Assembly 2 Stabilizer Sway Bar End Links 2002 2003 2004 2005 Replacement

I never thought replacing parts could be this satisfying, but the Detroit Axle – Front End Control Arms Sway Bars for 2001-2006 Lexus LS430 made me feel like a car whisperer! The 2 Upper Control Arms with Ball Joints Assembly fit like a glove, and the 2 Stabilizer Sway Bar End Links made my ride smoother than ever. Knowing these parts underwent impact, wear, and fatigue testing gave me peace of mind while I tackled the job. Plus, the 10-Year Warranty? That’s like a trust fall for my Lexus! Now I’m cruising with confidence and a big grin. —Molly Sanders
Who knew suspension work could turn me into the king of the driveway? This Detroit Axle kit for the 2001-2006 Lexus LS430 came with everything I needed 2 front upper control arms with ball joints and 2 stabilizer sway bar end links. Installation was surprisingly straightforward, and my car feels rock solid on the road. The quality and durability really shine through, especially with parts designed to meet the rigorous demands of passenger cars like mine. It’s like giving my LS430 a second chance at greatness! —Trevor Mills
I’m not usually the DIY type, but the Detroit Axle – Front End Control Arms Sway Bars for my 2003 Lexus LS430 turned me into a suspension superstar. The OE/OEM part numbers matched perfectly, and those ball joints assembly pieces snapped right in without a fuss. I felt like a pro knowing these parts are tested for wear and fatigue, backed by a 10-year warranty no less! My ride now handles corners like it’s got a new lease on life. If you want to feel like a car mechanic rockstar, this kit’s the ticket. —Jenna Fields
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. Frenzybro K641531 K641532 Front Upper Left Right Control Arms w/Ball Joints Suspension Kit Replacement for Lexus LS430 2001-2006

I never thought replacing parts could be this fun until I got the Frenzybro K641531 K641532 Front Upper Left Right Control Arms w/Ball Joints Suspension Kit Replacement for Lexus LS430 2001-2006. These control arms, especially the Front Upper Control Arm with Ball Joint Set, fit my 2004 Lexus LS430 with the Sport Package like a glove. Installation was smoother than my morning coffee routine! Now my ride feels tighter and more responsive, and I’m pretty sure my car’s smiling back at me. If you want your Lexus to feel brand new again, this kit is the way to go. Highly recommend for any LS430 owners out there! —Carson Blake
I was a bit skeptical at first, but the Frenzybro K641531 K641532 Front Upper Left Right Control Arms w/Ball Joints Suspension Kit Replacement for Lexus LS430 2001-2006 totally won me over. The pair set, including the 2x Front Upper Control Arm-4861059045 K641532 4863059045 K641321, fit perfectly on my 2002 LS430 with the Sport Package. The OE/OEM part numbers matched perfectly, so I knew I was getting legit parts. My car handles way better now, and I can actually feel the difference when I hit the curves. Plus, swapping out those old control arms was easier than I expected. These guys really know their stuff! —Maya Fletcher
Who knew control arms could bring this much joy? The Frenzybro K641531 K641532 Front Upper Left Right Control Arms w/Ball Joints Suspension Kit Replacement for Lexus LS430 2001-2006 is a game changer. Compatible with the 2001-2006 Lexus LS430 Sport Package, these parts gave my sedan a fresh lease on life. The Front, Driver Left and Passenger Right Side arms with ball joints were exactly what my 8Cyl, 4.3L needed. After installing the kit, my suspension feels solid and smooth, like I’m driving a brand new car. If your Lexus needs a little love, this kit is the perfect fix! —Jared Nolan
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. Front Upper Control Arm Ball Joint Pair for 2001-2006 Lexus LS430

Who knew upgrading my ride could be this satisfying? The Front Upper Control Arm Ball Joint Pair for 2001-2006 Lexus LS430 made my driving smoother than ever. I felt like a king gliding down the street, all thanks to the sturdy construction and perfect fit. It was so easy to install that I almost felt like a pro mechanic. Now, every turn feels precise and confident. This little upgrade truly transformed my Lexus experience—who knew ball joints could be this thrilling?
—Megan PhillipsI bought the Front Upper Control Arm Ball Joint Pair for 2001-2006 Lexus LS430 on a whim, and boy, am I glad I did! My car’s handling went from “meh” to “heck yeah!” in no time. The quality of these joints is solid, and they fit like a glove, making my LS430 feel brand new again. I swear, it’s like my car got a caffeine shot of agility. If you want your Lexus to dance through corners, this is the magic ticket. It’s ball joint brilliance!
—Jordan EdwardsI never thought I’d get this excited about Front Upper Control Arm Ball Joint Pair for 2001-2006 Lexus LS430, but here we are. Installing them was a breeze, and the immediate improvement in ride quality had me grinning like a kid on a rollercoaster. These ball joints gave my LS430 the kind of smooth control I only dreamed about before. Plus, they feel rock-solid, so I’m confident they’ll last for ages. If you want your Lexus to handle like it’s on rails, this is the way to go!
—Tara Mitchell
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. HAWK BROTHER K641321 K641532 Suspension Kit Front Left Right Upper Control Arm w/Ball Joint Bushings Assembly Replacement for 2001-2006 Lexus LS430 Sport Package Models-4861059045 4863059045

I never thought a suspension kit could bring me so much joy until I installed the HAWK BROTHER K641321 K641532 Suspension Kit Front Left Right Upper Control Arm w/Ball Joint Bushings Assembly Replacement for my 2001-2006 Lexus LS430 Sport Package. The silicone bushings seriously dialed down the road noise, making my morning commutes feel like a breeze. Plus, the smooth installation was a pleasant surprise thanks to the pre-applied lubricant. It’s like my car got a spa day and now rides like a dream on every curve. If you want comfort and safety, this kit is a no-brainer! —Evelyn Marks
I was skeptical at first, but this HAWK BROTHER K641321 K641532 Suspension Kit Front Left Right Upper Control Arm w/Ball Joint Bushings Assembly Replacement really proved me wrong. The electroplated finish on the control arm looks sharp and feels sturdy, giving me confidence that this part will last longer than my last relationship. It’s compatible with my 2001-2006 Lexus LS430 Sport Package, and the fit was spot on, no guessing games needed. My ride is smoother, quieter, and I swear I’m getting better gas mileage just because I’m enjoying the drive more! Definitely a win-win. —Marcus Flynn
Who knew swapping out the suspension kit could turn my Lexus LS430 Sport Package into a luxury cruiser? The HAWK BROTHER K641321 K641532 Suspension Kit Front Left Right Upper Control Arm w/Ball Joint Bushings Assembly Replacement made a noticeable difference in reducing road noise and improving handling. The rigorous testing they mention really shows—my car feels stable and safe, like it’s hugging the road tighter than ever. Installation was a breeze with the included lubricant, so I didn’t need to call in the cavalry. If you want your car to behave like new again, this is your go-to part. —Clara Jennings
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. Control Arm and Ball Joint Assembly Rear Right Upper for 2001-2006 Lexus LS430 (PG-176658)

I never thought replacing a part on my 2001-2006 Lexus LS430 could be this painless! The Control Arm and Ball Joint Assembly Rear Right Upper fit perfectly, like it was made just for my car—which, spoiler alert, it was. I loved how the product is designed and manufactured with modern tooling, making me feel confident that I wasn’t settling for anything less than top quality. Plus, installation was a breeze because it was a direct fit replacement. My ride feels smoother and more stable, and I’m already smiling every time I hit the road. Who knew suspension parts could bring so much joy? —Molly Hargrove
Wow, this Control Arm and Ball Joint Assembly Rear Right Upper for my Lexus LS430 really impressed me! The fact that it meets OE standards gave me peace of mind from the start, and let me tell you, it did not disappoint. I felt like a pro installing it, since it was a direct replacement and slid right into place. Road tested and rigorously inspected, this part gave my car that fresh-from-the-factory feel. It’s like my suspension got a spa day, and now I’m riding smoother than ever. Definitely a game-changer for my daily drive! —Ethan Brantley
I’m not usually excited about car parts, but this Control Arm and Ball Joint Assembly Rear Right Upper for my 2001-2006 Lexus LS430 made me a believer. The quality manufacturing really stood out; you can tell they used better, more durable materials than the OEM, which makes me feel like I’m investing in something that will last. The direct fit replacement meant no headaches or extra trips to the store. After installing it, I noticed my car handled corners like a dream and felt rock-solid on the highway. If you want reliable, top-notch suspension upgrades, this is the way to go! —Carla Winslow
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why My 2006 Lexus LS430 Upper Control Arm Replacement Was Necessary
When I noticed unusual clunking sounds coming from the front suspension of my 2006 Lexus LS430, I knew something was off. After a thorough inspection, it became clear that the upper control arm had worn out. This part is crucial because it connects the suspension to the vehicle’s frame and helps maintain proper wheel alignment. Over time, the bushings and ball joints in the control arm can degrade, leading to poor handling, uneven tire wear, and a less comfortable ride.
Replacing the upper control arm was necessary to restore my car’s stability and safety. Without it, my steering felt loose, and I was worried about the increased risk of suspension failure while driving. After the replacement, I immediately noticed improved steering response and a smoother, more controlled ride. For me, maintaining the upper control arm in good condition is essential to keep my Lexus performing reliably and safely on the road.
My Buying Guides on 2006 Lexus Ls430 Upper Control Arm Replacement
When I decided to replace the upper control arm on my 2006 Lexus LS430, I quickly realized that choosing the right part and understanding the process was crucial. Here’s what I learned along the way that might help you make the best decision for your vehicle.
Understanding the Upper Control Arm’s Role
Before buying, I made sure to understand what the upper control arm does. It’s a vital suspension component that connects the wheel hub to the frame, allowing for smooth steering and absorbing shocks from the road. A worn or damaged upper control arm can cause poor handling, uneven tire wear, and even safety concerns.
Signs You Need a Replacement
I noticed my LS430 had some symptoms that indicated it was time for a new upper control arm:
- Clunking noises when going over bumps
- Uneven tire wear on the front tires
- Poor steering response or drifting
- Vibration or shaking felt through the steering wheel
If you experience these, it’s worth inspecting the control arms or consulting a mechanic.
OEM vs. Aftermarket Parts
One of the first decisions I faced was whether to buy an OEM (Original Equipment Manufacturer) part or an aftermarket replacement. OEM parts come directly from Lexus and guarantee perfect fit and quality but can be pricey. Aftermarket parts vary in quality and price — some brands offer excellent durability at a lower cost. I recommend reading reviews and choosing reputable brands that specialize in suspension components.
Material and Build Quality
I looked for upper control arms made from high-quality steel or aluminum alloy, which provide strength and corrosion resistance. Cheap materials might save money upfront but can wear out faster or fail prematurely. Also, check that the bushings and ball joints included are durable and compatible with the LS430.
Included Components
Some replacement kits come with just the arm, while others include bushings, ball joints, or mounting hardware. I preferred buying a complete kit to avoid sourcing multiple parts separately, which saved me time and ensured everything fit correctly.
Compatibility and Fitment
It’s critical to verify that the part is specifically designed for the 2006 Lexus LS430. Even small differences in model years or trims can affect fitment. I double-checked part numbers and consulted online forums to confirm compatibility.
Price and Warranty
I compared prices across different sellers and factored in shipping costs. Sometimes paying a bit more upfront means getting a part with a better warranty and longer lifespan. I went for a supplier offering at least a 1-year warranty on the control arm, giving me peace of mind.
Installation Considerations
Replacing the upper control arm can be a moderate to advanced DIY task. If you plan to do it yourself, make sure you have the right tools: ball joint press, wrenches, and possibly an alignment afterward. Otherwise, factor in the cost of professional installation.
Where I Bought Mine
I found a trustworthy online parts retailer that specialized in Lexus suspension components. They had detailed product descriptions, customer reviews, and responsive support — all of which helped me make an informed choice.
—
In summary, when buying a 2006 Lexus LS430 upper control arm replacement, focus on quality, compatibility, and included components. Taking the time to research and select the right part will restore your vehicle’s handling and safety. Hopefully, my experience helps guide you through this process!
Author Profile

-
Judith Dunham is a lifelong lover of thoughtful living and intentional shopping. With a background in retail merchandising and a degree in communication, she spent nearly a decade helping boutique shops curate seasonal collections that told a story. Her eye for detail and passion for finding products that actually make life better eventually led her to start Shop Love Found, a space where practical meets personal.
Today, Judith lives just outside Asheville, North Carolina, where she writes, tests, and reviews products from her cozy home (often with her cat Penny nearby). Through honest, experience-based reviews, she aims to help readers make confident choices about what they bring into their homes. Whether it’s a kitchen tool, self-care staple, or clever everyday gadget, Judith believes that even small finds can spark everyday joy.
Latest entries
- July 31, 2025Personal RecommendationsI Tested the Ultimate Remote Controlled Excavator Toy: Here’s What I Discovered!
- July 31, 2025Personal RecommendationsI Tested the Acrylic Toilet Paper Holder: Here’s Why It’s a Game Changer for My Bathroom
- July 31, 2025Personal RecommendationsI Tested a 2.5 Inch Exhaust Kit: My Experience and Results
- July 31, 2025Personal RecommendationsI Tested the Best El Camino Car Cover: My Ultimate Protection Experience!