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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
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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
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★★★★★ 5
Win Win Shirt no need to think on purchase.
Size: XX-Large, Color: Light Pink
Beautiful shirt. true to size. perfect and cost are spectacular. trust me from a guy that bought many expensive shirts, this will deliver perfect fit and at the cost a double win.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Good Material Thickness and Comfortable
Size: XX-Large, Color: Blakc
I picked up the J.VER Men’s Oxford Shirt, and it turned out to be a solid choice. The seam quality is clean and consistent, with no loose threads or uneven stitching. The material thickness is right where it should be for an oxford. It feels sturdy without being stiff.
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The softness surprised me. It feels comfortable on the skin and stays that way through the day. Overall comfort is great, whether you’re wearing it for work or a casual night out.
A clean, comfortable shirt that fits well and looks good.
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Reviewed in the United States on December 5, 2025
★★★★★ 4
Good quality
Size: 3X-Large, Color: White
The shirt fit great! True to size. Only issue for me, it would have been nice if it was longer to tuck in.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Great fit and comfortable
Size: 3X-Large, Color: White
Great fit and comfortable shirt! The fabric isn't thin and flimsy like some dress shirts today.
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Reviewed in the United States on May 30, 2026
★★★★★ 5
Great shirts! I prefer them over much, more expensive shirts!
Size: X-Large, Color: Lemon Yellow
Nice fitting shirt for the cost. Better than most that I’ve purchased for 2-3 times the cost. I prefer these to my Lacoste or Lands End long sleeved shirts! They look/wear much nicer after dry cleaning versus machine washing.
I’ve bought five of them now!
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Reviewed in the United States on May 21, 2026
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