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2pc Kit

Adjustable control arms — rear upper

Ram 1500 09+ 2pc Trail Series Rear Upper Adjustable Control Arms

309.50 309.5 USD 351.70

351.70

Build Season · Save 12% — $42 off · ends Aug 28

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Order today — ships within 1–3 business days
Enter ZIP for arrival estimate Delivery date by ZIP
Order by 3:00 PM MT today — we'll start tomorrow
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COLOR Pick yours
100% bolt-on no welding MADE IN USA · Orem, Utah Expert Support 100K+ Community
Free mounting hardware included — a $20 value
Factory Air Ride
1
Joints RockJock Johnny Joint + poly bushing
Tubing 1.75" OD uppers and lowers 5/16" wall DOM
https://jerdev.core4x4.com/web/image/product.template/2093/image_1920?unique=df113cf

2pc Kit

Ram 1500 09+ 2pc Trail Series Rear Upper Adjustable Control Arms

Adjustable control arms — rear upper

SKU: TRL-R-15-2009-RU2
Does not fit Ford F250

309.50 309.5 USD 351.70

351.70

Build Season · Save 12% — $42 off · ends Aug 28

More ways to pay ▾

COLOR 11 colors
Black Blue Charcoal Green LightGreen Orange Purple Red White Yellow Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed.

Build Your Kit

  • Vehicle
    Confirm this matches your vehicle. Use Shop by Vehicle to filter correctly.
  • Brand
  • Color
    Powder coat color for control arms and track bars. Does not affect performance.
  • Series
    Cruise: daily driving and light off-road. Camp: overlanding. Crawl: aggressive rock crawling.
  • Lift Size
    Choose your current front lift height. Measure from center of wheel to fender if unsure.
  • Hardware
    Choose upgraded hardware if your factory hardware is worn, damaged, or missing.
  • Factory Air Ride
  • Year Range
  • Note to Core4x4:

Select Color to see price and add to cart.

Free mounting hardware included — a $20 value
Order today — ships within 1–3 business days
Enter ZIP for arrival estimate Delivery date by ZIP
Order by 3:00 PM MT today — we'll start tomorrow
See full timeline
Core 4x4 Manufactured

Alignment recommended Lifetime warranty on all non-wear items Made In USA

Made in USA Orem, Utah
Lifetime Guarantee Unconditional
10 Colors In-house powder coat
Fully Adjustable 0-6" of lift
3 X-Series Options Only Core 4x4

Product Details

Precision Control for Pinion Angle Rear Axle Alignment

Maximize your Ram 1500’s performance with the Trail Series Adjustable Rear Upper Control Arms, engineered to fine-tune rear axle alignment and pinion angle adjustments. Designed to work in conjunction with our lower rear control arms, this setup ensures maximum traction, stability, and drivetrain efficiency across all terrains—from highways to rugged off-road trails.

What’s Included?

Trail Series Adjustable Rear Upper Control Arms (TRL-R-15-2009-RU2)

Key Features Benefits

  • Heavy-Duty DOM Tubing Construction – Built from 1.75" OD, .313" wall DOM tubing for exceptional strength and durability.
  • Polyurethane Johnny Joint Combo – Features high-grade polyurethane bushings at the fixed ends for reduced NVH (Noise, Vibration, and Harshness) and Rock Jock Johnny Joints at the adjustable ends for maximum articulation and flexibility.
  • Pinion Angle Adjustment for Driveline Efficiency – Adjustable to correct pinion angle, reducing driveline vibrations and premature wear for a smoother power transfer and extended drivetrain life.
  • Recommended Pairing – For complete rear suspension control, pair with Trail Series Adjustable Rear Lower Control Arms (TRL-R-15-2009-RL2) to eliminate wheel hop, optimize suspension geometry, and maintain proper axle alignment.

Eliminate Driveline Vibration Improve Rear Suspension Control

Factory upper control arms lack adjustability, making pinion angle corrections impossible after lifting or lowering your truck. By installing adjustable upper control arms, you eliminate vibration-causing misalignment, ensuring smooth acceleration, extended U-joint life, and optimal drivetrain efficiency. When paired with adjustable lower control arms, you gain full control over axle positioning, reducing suspension flex and eliminating wheel hop.

Highly Durable Two-Stage Powder Coating

  • Zinc primer base coat for maximum rust resistance
  • Durable topcoat available in 10 color options for a customized look

Optional Hardware Upgrade

Designed for installation using factory hardware, but for enhanced durability and a secure installation, we offer an optional Grade 8 hardware kit (sold separately).

Proudly Made in the USA

Manufactured in Orem, UT, every CORE 4X4 component meets strict quality control standards for precision, strength, and long-term durability.

Final Thoughts

The Trail Series Adjustable Rear Upper Control Arms are a must-have upgrade for lifted or lowered Ram 1500 owners looking for driveline stability, reduced vibration, and enhanced suspension control. Pairing these with adjustable lower control arms provides total control over axle alignment, ensuring your truck stays planted and smooth under all conditions.

Upgrade today and take full control of your suspension and drivetrain performance!


  • Vehicle Fitment: Designed for Ram 1500 09+, these rear upper control arms optimize pinion angle and axle alignment, improving traction, stability, and drivetrain efficiency for daily driving and off-road use.

  • CORE Advantage: Eliminates driveline vibrations and enhances power transfer with precision adjustability, while a combination of polyurethane bushings and Johnny Joints reduces NVH and maximizes articulation.

  • Adjustability: Adjustable for proper axle alignment and suspension geometry, supporting up to a 6-inch lift or 6-inch drop for improved handling and stability.

  • Construction: Built from 1.75” OD 5/16” wall DOM tubing with Rock Jock Johnny Joints at the adjustable ends and polyurethane bushings at the fixed ends, ensuring durability, articulation, and long-lasting performance.

  • Two-Stage Powder Coating: Zinc primer base and top coat available in 10 vibrant colors protect against corrosion and allow for personalized styling of your rig.

  • Warranty and Origin: Proudly manufactured in the United States, our product includes a lifetime warranty on all non-wear items, providing you with confidence and peace of mind in your purchase.

Built With

Rear Lower control arm built with 1.75” OD 5/16” Wall DOM. A Polyurethane Bushing on the fixed end and a Forged Johnny Joint on the adjustable end with 1.25” x 12 TPI - 2.625” long threads.

Make Model Submodel Years
Dodge/Ram 1500 2009 - Present

Each rebuild kit includes all necessary components to replace and restore wearable parts.

Construction & Materials

Rear Lower control arm built with 1.75” OD 5/16” Wall DOM. A Polyurethane Bushing on the fixed end and a Forged Johnny Joint on the adjustable end with 1.25” x 12 TPI - 2.625” long threads.

Vehicle Ram 1500 (09–Present)
Brand CORE 4X4
Color Black or Blue or Charcoal or Green or LightGreen or Orange or Purple or Red or White or Yellow or Custom Color - Other than what is listed above. Extra charge varies. We will reach out after order is placed.
Series Trail Series
Lift Size 0" — 6" or 6"+ or -6" — -1"
Hardware No Hardware or Complete Kit
Factory Air Ride No or Yes
Year Range 09+
Placement on Vehicle Rear Upper, Rear
Mounting Style Bolt-On

Use the vehicle selector on our website to shop by your year, make, and model. On product pages, use the kit builder to select your color, series, lift height, and any add-on options, then add to cart. If you need help, call or email our team.

Standard orders typically ship within 1–3 business days of ordering. Custom color orders take approximately 5–10 business days. Because everything is built in-house, we can turn orders quickly even for custom specifications.

You can reach our team through the contact form on our website, or browse to the Contact Us page. Our team is available to answer pre-sale and technical questions before and after your purchase.

Google

Reviews of Core 4x4

See all on Google
4.8
161 reviews
5
97%
4
2%
3
0%
2
1%
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GLENN KOSZKA Apr 27, 2025
Google
The folks at Core 4X4 are always wonderful to deal with. They explain your options and never pressure or rush things. The quality of the Core Control Arms is top shelf, especially if your goal is to stop wheel hop. I recommend Core 4x4 without reservation ! ! !
BM
Brantly Musgrave Jan 22, 2026
Google
First and foremost would like to say that Core4x4s customer service is top notch and they definitely stand behind their warranty on products! Highly recommend using them for any of your off road needs! It’s rare to find a company now a days that backs their products and they do! Had a few issues with mounts and control arms and they handled it without hesitation! Thank you!
TD
Tim Davis Sep 24, 2025
Google
Customer service is amazing, responds fast and know what they are talking about. Their product looks top of the line.
CL
Colten Lockwood Mar 25, 2019
Google
Recieved warrenty exchanges for my control arms last night couldnt be happier!!! Lets talk about the arms tho! Great quality arms in multiple styles and colors!!! I purchased the teir 3 short arns for my 98 xj. I can say that they setoff nicely so my 35 inch tires do not rub! As long as you can get a photo or video of broken hardware core will take care of you. The body of the arm is bulletproof. However make sure to maintain and grease the joints regularly as with any greaseable joint and they shouldkast forever. I had a few problems arise a year after purchase and after some troubleshooting spence was able to help get me the correct parts to get back on the road. I recommend this setup to any and all jeepers looking to get away from the stock arm setup. Alltogether i am Very happy with the performace of my control arms!!!! Mechanic and bodyman of 12 years and my first choice for quality control arms!!
RH
Rex Hodges Jun 26, 2025
Google
After ordering an upper and lower adjustable control arm kit manufactured by CORE 4X4 from a jeep parts distributor who's intials are E.T., they came with 3 of the threaded ends missing. After over 2 months of phone calls and emails to this E.T. company nothing was resolved. I finally decided to call CORE 4X4 myself and tell them my dilemma. I spoke with a very personable and professional gentleman named Korby, who is one of CORE 4X4's representatives, after a brief discussion of what I went thru he simply asked me for a picture and some measurements and the items I was missing and asked if I could cover ONLY the cost of shipping and I had my missing parts in exactly 1 weeks time. This company not only builds all it's parts in the U.S.A., they stand behind their products with great customer service and life time warranty. My experience with this company and their Rep Korby was fantastic. I would definitely recommend CORE 4X4 to anyone who needs parts for any 4x4 projects. You just can't beat their quality and service. Rex Hodges Valparaiso, Indiana
J
Justin Mar 24, 2021
Google
Small business, family owned, made in the USA, lifetime warranty. Purchased Tier 3 control arms and rear track bar for a 2006 Jeep LJ. Simple website and easy to contact over phone and email. I had some technical questions and they were happy to answer them. They allow local pickup and were built to order same week. The order was wrapped and ready when I walked in and even gave a tour of the shop. They abrasive blast all raw materials to achieve a better surface profile for powdercoat to adhere and create a smooth, durable finish. I also noticed several CNC machines and a robotic welder they use for all their parts. A small outfit with a robotic welder? Their concern for quality is obvious and it shows in the parts they make. Very impressed. Happy to do business with these guys.
Review photo 1
TG
Travis Grimm Mar 23, 2024
Google
To start off if you're looking to upgrade your control arms definitely hit this company up. Great product, easy install of the product, with three different tiers everything is priced pretty good, I'm a sticker guy and they sent a sticker for each arm each track bar and also three extra ones so the extra are on the Jeep the advertise them for sure. If you're reading this review I highly recommend you to check their website out.
Review photo 1 Review photo 2 Review photo 3 Review photo 4
LS
Leonard Smith Jan 22, 2026
Google
I don’t write reviews often, but Core 4x4 absolutely earned this one. I recently ordered leaf spring mounts and realized after the fact that I messed up my order. Totally my mistake. Instead of giving me the runaround or pointing at a return policy, Core 4x4 emailed me back and forth, worked through exactly what I was doing with my build, and made sure I ended up with the correct parts. That kind of customer service is rare these days — especially in the off-road world where a lot of companies stop caring once the order is placed. The parts themselves are exactly what you hope for: solid, well-made, confidence-inspiring hardware that looks like it belongs under a vehicle that actually gets used. You can tell these are designed by people who understand suspension geometry and real-world abuse, not just CAD screenshots. Mistakes happen — especially on custom or modified builds — and Core 4x4 handled mine like pros. Fast responses, clear communication, and a genuine effort to help me get it right. If you’re on the fence: don’t be. Core 4x4 is the kind of company you want backing your build — the kind that treats customers like fellow enthusiasts, not order numbers.
CT
Canon TeSelle Jun 26, 2025
Google
Great Experience. I wanted to make changes to my order and Korby was more than willing to work with me to get everything corrected. Hope to deal with these guys again in the future.
GC
Grant Chaisson Jun 26, 2025
Google
These guys are awesome!! They have helped me build multiple jeeps from zjs to mjs and now with my lj build they all ways impress. There products are the best on the market in my eyes. The best part about it all is it's all made right here in american and shipped anywhere in the world 🌎 . Don't think twice when your looking for control arm or lift kits for your vehicle if these guys sell it BUY IT!!!
Review photo 1
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Made in Orem, UT · Lifetime warranty
(801) 850-2920
Ford F250
2005 - 2016
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