What are the benefits of adding UCA?

Factory upper control arms weren’t built for aggressive off-road travel. RRW's UCA fix alignment issues, reduce stress on ball joints, and gives you the confidence to send it hard — and land it clean. built to correct camber/caster on lifted trucks for smoother handling and tire wear increases articulation for improved off-road traction and comfort reduces bind and improves ride feel across all terrain

Toyota Forged UCA Upper Control Arm

Name: Toyota Forged UCA Upper Control Arm
Brand: Relations Race Wheels
SKU: UCA-3GTC-CL
Price: 1300.0 USD
Availability: InStock

CNC Billet Upper Control Arm (UCA) | Toyota Tacoma 4Runner GX470 - RRW Relations Race Wheels

RRW Gen 3 Tacoma Billet Upper Control Arms UCA with FK Uniball

CNC machined billet UCA uniball for Toyota Tacoma

CNC Billet Upper Control Arm (UCA) | Toyota Tacoma 4Runner GX470 - Relations Race Wheels

RRW billet upper control arm UCA for Toyota

FEA testing of RRW Billet Control Arm for Toyota Tacoma

vehicle compatibility

-3G Tacoma 2016-2023: also fits 5G 4Runner 2005-2023, Lexus GX470
-4G Tacoma 2024-2026: also fits 6G 4Runner 2024-2026, Landcruiser 250, Lexus GX550
-3G Tundra 2022-2026

Vehicle Fitment

3G Tacoma (2023-older)

4G Tacoma (2024-2026)

3G Tundra (2022-2026)

Finish — Raw Billet

Raw Billet

Black Anodize

Quantity

In stock, ready to ship
Backordered, shipping soon

$ 1,400.00 $ 1,300.00 Save 7%

Shipping calculated at checkout.

Regain Control. Restore Geometry.
Upgrade Your Suspension.

Our billet UCAs are CNC machined from aerospace-grade 6061-T6 aluminum for maximum strength without the weight. Engineered to correct alignment issues in lifted or leveled setups, our line of UCA's deliver the clearance, durability, and performance serious off-roaders demand.

Aerospace-grade strength with lightweight performance

Optimized for lifted geometry

Bolt-On Install

Compatible with stock & aftermarket coilovers

goes well with

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COMPLETELY SEALED UNIBALL

Our billet UCA features an entirely sealed uniball, which extends the lifespan of the fastest-wearing component. Ensuring that the Kevlar-reinforced PTFE liner remains free from debris and grime is essential for its longevity.

Billet UCA Upper Control Arm | 2020+ Chevy Silverado 2500 - RRW Relations Race Wheels

CAD DESIGNED & FEA ANALYZED

Using 3D scan data, we reverse engineer the geometry and optimize it for lift. This optimized geometry creates balanced comfort and performance both on and off road. Several prototypes are made, fitted, and analyzed to ensure correction of camber, caster, reduce bump steer.

machining details

Large chamfers at inside radius increases clearance for the coil spring at full suspension droop

hardware & contents

(1) Driver and (1) Passenger side upper control arm
large 1.25 inch Uniball Kevlar reinforced PTFE teflon lining
**Tundra uses a larger 1.5 inch uniball
7/8" rod end bearings
SS304 precision machined misalignment spacers
(2) 14mm G12.9 uniball through bolt (chrome plated) w/ nylon nut
(2) rubber dust boot, clamp, laser cut clamp plate
billet dust clamp
6mm hardware for pinch ends

*this list is for a 3G Tacoma / 5G 4Runner UCA. Some variations in hardware may occur for other vehicle fitments

frequently asked questions

Factory upper control arms weren’t built for aggressive off-road travel. RRW's UCA fix alignment issues, reduce stress on ball joints, and gives you the confidence to send it hard — and land it clean.

built to correct camber/caster on lifted trucks for smoother handling and tire wear
increases articulation for improved off-road traction and comfort
reduces bind and improves ride feel across all terrain

Yes, we sell replacement rubber boots here.

Ball joints are what factory UCA are equipped with and, while quiet and comfortable, they are not durable for offroad use and tend to wear prematurely.

Conversely, uniballs, especially the large 1.25 or 1.5 inch ones that we use, are far superior in terms of durability and range of motion. Although uniballs are known to be noisy when dirt and debris begin wearing out the PTFE liner, our rubber dust boot completely seals the uniball away from these elements. This not only prevents noise, it also potentially extends the life of the uniball allowing it to outlast a standard ball joint.

At this time, we only ship to the contiguous US States, Hawaii and Canada. For shipping inquiries outside of those regions, please reach out to our dealers Custom Offsets and Trail Built.

Let customers speak for us

from 216 reviews

Matte Black finish looks amazing along with how strong and light the wheel is. Really makes my Toyota Tacoma look so much better!

Kaden Studley

10/20/2025

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Protective rings V1

The rings arrived well packaged and really add to the H7 wheel’s appearance and best off all will save my rims from being scrapped up rocks and curbs it’s cheap Insurance along with peace of mind. A must have imop. Definitely sets RRW wheels apart from the entire rest of the competition!

Anonymous

10/07/2025

Protection Rings V1 - Precision Laser Cut

Nice center caps

Nice center caps!

John Priddy

10/07/2025

Embossed ABS Center Cap (New)

Great set up from RRW. Customer service was top notch

Omar

09/26/2025

Replacement Urethane Boot for UCA

I love the style of wheel

I love the style of wheel, they look awesome, and they preformhow I love it to

Zachary Warchal

09/13/2025

Shipping Protection by Route

Does what it's intended to do with a proper fit

Does what it's intended to do with a proper fit. Excellent

Anonymous

09/12/2025

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Great looking

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Anonymous

09/09/2025

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Great looking light weight forged rim

Great looking light weight forged rim.

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09/04/2025

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Shipping was fast, wheels look great!

indiana

09/03/2025

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A++++++++++++++

A++++++++++++++ EXCELLENT

YOUNAN SAFAR

09/02/2025

Shipping Protection by Route

Good quality rim that's light weight

Good quality rim. Main thing I was after was the -25 offset and the weight savings. Everything seems to be good. I'm currently running the monoforge 2 without the rings and instantly noticed the weight savings of the wheel when driving. Truck feels more responsive while turning and has better acceleration and braking than the old SCS wheels.

08/31/2025

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Good quality, lots of bite.

Lug nuts seem to be of good quality with quality coating. They are deep, I counted 12-14 full turns on each as they were installed. Should last for a long time with plenty of bite.

08/31/2025

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10 outa 10 recommend!

Had my eye on these wheels for awhile now but hey just didn’t quite tit the aesthetic of my 2nd gen. Had to go out and buy a 4th gen to make them work. lol. Jk, Fit and finish is on point and love that I’m saving prob 10lbs a wheel compared to many other manufacturers. Wrapped them up in 35s and feeling great.

Mike

08/19/2025

Shipping Protection by Route

Love them!! Look

Love them!! Look great!

Charles

08/18/2025

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Protection

Protection guarantee

Juan

08/17/2025

Shipping Protection by Route

Toyota Forged UCA Upper Control Arm

vehicle compatibility

Regain Control. Restore Geometry.
Upgrade Your Suspension.

Aerospace-grade strength with lightweight performance

Optimized for lifted geometry

Bolt-On Install

Compatible with stock & aftermarket coilovers

goes well with

hardware & contents

frequently asked questions

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Let customers speak for us

Toyota Forged UCA Upper Control Arm

vehicle compatibility

Regain Control. Restore Geometry. Upgrade Your Suspension.

Aerospace-grade strength with lightweight performance

Optimized for lifted geometry

Bolt-On Install

Compatible with stock & aftermarket coilovers

goes well with

hardware & contents

protect your wheel in any terrain

air down without worry

Let customers speak for us

Regain Control. Restore Geometry.
Upgrade Your Suspension.