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Description
Synergy 8580-04 Long Arm Upgrade KitThe Synergy 8580 04 Long Arm Upgrade Kit from GAP is designed to improve your 2003 2013 Dodge Ram 2500 3500 suspension geometry while off roading. Shorter control arm angles are hard on a vehicle's suspension components which leads to poor vehicle handling, limited suspension travel, and an overall bumpy ride as the shocks produce a choppy movement as you drive. By using the Synergy long arm kit a better angle is achieved, which offers more range of
The Synergy 8580-04 Long Arm Upgrade Kit from GAP is designed to improve your 2003-2013 Dodge Ram 2500/3500 suspension geometry while off-roading. Shorter control arm angles are hard on a vehicle's suspension components which leads to poor vehicle handling, limited suspension travel, and an overall bumpy ride as the shocks produce a choppy movement as you drive. By using the Synergy long arm kit a better angle is achieved, which offers more range of motion and doesn't put undue stress on the truck's suspension components.
Features:
- Synergy Dual Durometer Teflon Lined Bushings
- Powder Coat Finish For Maximum Durability And Corrosion Resistance
- Synergy Double Adjuster Sleeve & Pinch Bolt Assembly Allows For Easy Adjustment Of Control Arms
- Long Arm Kit Was Designed Using OEM CAD Files For A Perfect Fitment & Enhanced Vehicle Drivability
- 100% Bolt On Components Assures An Easy, Trouble Free Installation With The Use Of Basic Hand Tools
- Can Be Installed On Anything From A Completely Stock Truck To A 6" Lift And 12" Stroke 3.0" Diameter Shocks
Kit Specifications:
- Upper Control Arms Are Manufactured From High-Quality Crush Resistant 1.75 X .188 Wall 1026 DOM Tubing
- Lower Control Arms Are Manufactured From High-Quality Crush Resistant 2.0" X .250 Wall 1026 DOM Tubing
8580-04 Long Arm Upgrade Kit Includes:
8581 - Long Arm Bracket (Pair)
8583 - Front Lower Control Arms (Pair)
8585 - Front Upper Control Arms (Pair)
8583 - Front Lower Control Arms (Pair)
8585 - Front Upper Control Arms (Pair)
Notes:
To prevent front tires from rubbing the control arms at full steering lock, we recommend the following wheel/tire combinations:
Most* 37-inch tires - wheels must have no more than 4.5 inches of backspacing
Most* 40-inch tires - wheels must have no more than 3.75 inches of backspacing
* Same size tires will dimensionally vary from manufacturer to manufacturer.
Most* 37-inch tires - wheels must have no more than 4.5 inches of backspacing
Most* 40-inch tires - wheels must have no more than 3.75 inches of backspacing
* Same size tires will dimensionally vary from manufacturer to manufacturer.
Due to the additional weight of megacab truck configurations, Synergy recommends all gas megacab trucks use Heavy Duty (HD) front coil springs instead of Light Duty (LD) front coil springs. LD front coil springs will give less lift than advertised.
Upgrading to long arms requires removal of the stock control arm brackets at the frame.
Applications:
2003-2013 Dodge Ram 2500 4WD2003-2013.5 Dodge Ram 3500 4WD
2006-2008 Dodge Ram 1500 Mega Cab 4WD
Note: 2013 Dodge Ram 3500's were a split year for production. If your truck has radius arms use Dodge Ram 2014+ pages To prevent front tires from rubbing the control arms at full steering lock, Synergy recommends the following wheel/tire combinations: *Same size tires will dimensionally vary from manufacturer to manufacturer. Most* 37 inch tires - wheels must have no more than 4.5 inches of backspacing Most* 40 inch tires - wheels must have no more than 3.75 inches of backspacing Same size tires will dimensionally vary from manufacturer to manufacturer. Due to the additional weight of megacab truck configurations, Synergy recommends all gas megacab trucks use Heavy Duty (HD) front coil springs instead of Light Duty (LD) front coil springs. LD front coil springs will give less lift than advertised Upgrading to long arms requires removal of the stock control arm brackets at the frame
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
all natural - dogs love them!!
Size: Large, Color: Antler
Our golden retriever and lab both love these chews! All natural, not plastic like other brands. This is their favorite chew toy!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
★★★★★ 5
My dog likes it!
Size: Medium, Color: Antler, Size: Medium, Color: Antler
My aggressive chewer loves it! I have a 20 pound rat terrier ....small was recommended, but we went with a medium. He went to work on it right away. He is not picky about chew bones but it makes me feel better that it is a natural material. The chewed photo is about 30 mins after giving it to him.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
★★★★★ 3
Not for us!
Size: Large, Color: Antler
I'm sure for a dog that doesn't chew, would be great. Ours went through it in days, leaving sharp shards and making his gums bleed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
★★★★★ 5
Keeps pups busy, good for chewers.
Size: Medium, Color: Antler
My dogs love this product. Keeps them busy and it lasts. Just watch out for your feet when they drop it! Heavy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
★★★★★ 5
Power Chewer Loves This!
Size: Medium, Color: Antler
This is my dog's new favorite chew! She loves that she can hold it in her paws. I think she really loves the taste and texture of it. I don't give her antlers as I have heard too many horror stories about broken teeth. I also don't give her nylon toys as I have also heard a lot of horror stories of broken teeth as well as concerns about them digesting the plastic. This is between antlers and bully sticks, which is perfect for a power chewer. I feel comfortable with her eating the pieces that flake off this toy. She loves chewing and she will default to this toy when she wants to help calm down. I don't notice much of a smell. It does flake, but not enough I will even take a star off. Plus, it's plant based and vacuums up easily once dried. It doesn't capture her attention as much as bully sticks or beef cheek chews, but it's much less expensive over time and doesn't stink up our living room! She will also always pick this over any of her rubber chews. Great product and recommend it for all the power chewers.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 23, 2025
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