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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
4.5 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
So comfortable!
Size: King
Great pillows and really comfortable. They do a great job in adjusting support on whether i'm sleeping on my side or my back.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
★★★★★ 5
Cariloha pillow cover replacement
Color: White, Size: Queen
I have a queen size Cariloha resort pillow and the zipper on the cover broke. This replacement is SPOT on and fit perfect. Material feels comparable to original very pleased.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
★★★★★ 5
The fabric feels soft and noticeably comfortable against the skin
Color: White, Size: Queen
This is a zippered pillow protector made from a bamboo/polyester blend with a quilted surface. I’ve been using it for a few months on a standard queen pillow, including regular washing and everyday use. It’s also been exposed to dog hair, which I’ve been able to manage by vacuuming the surface.
Pros
The fabric feels soft and noticeably comfortable against the skin
Breathable design helps keep the pillow from feeling overly warm
Quilted texture adds a bit of cushioning without changing the pillow’s shape
Zipper closure keeps the pillow fully enclosed and secure
Holds up well after multiple washes
Vacuuming the surface works well for removing pet hair
Cons
White fabric shows dirt and hair more easily between washes
Slightly thicker than a basic pillowcase, which may not suit everyone
Bamboo blend feel is smooth but not identical to 100% natural fabrics
Bottom line:
For me, this has been a comfortable, low-maintenance pillow protector that holds up well over time, especially useful if you want something breathable that can handle regular cleaning and pet hair.
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Reviewed in the United States on April 11, 2026
★★★★★ 4
Say goodbye to neck pain
Color: White, Size: Queen
This is a very good product but it takes some time to adjust removable stuffing to accommodate individual sleeping patterns.
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Reviewed in the United States on April 15, 2026
★★★★★ 5
Soft and comfortable cooling pillowcase that gets the job done!
Color: White, Size: Queen, Color: White, Size: Queen
I got this quilted bamboo pillow protector (queen size) because I wanted a cleaner, cooler layer between my pillow and pillowcase since I’m always hot. This has been a great solution for that.
The fabric feels soft and smooth, and it doesn’t make that crinkly noise some cooling pillowcases do. I’m a warm sleeper and the “cooling” aspect feels more like breathable than icy-cold, but it definitely sleeps more comfortably than the thick polyester protectors I’ve used in the past. The light quilting adds a little cushion without making my pillow feel bulky or changing the loft much.
I like the fact that if you use a memory foam fill pillow you can add or remove some of the filling to make the pillow as firm or mushy as you want. This is especially helpful for people that are side sleepers vs people that need more neck support.
The zipper is a big plus. Just be careful when zipping it open and closed as these are usually the first point of failure for pillowcases in my experience. It closes fully and keeps the protector snug so it doesn’t shift around inside the pillowcase, and it gives me peace of mind for sweat / oils and everyday wear. I’ve washed it and it came out fine with no weird shrinking, and the stitching still looks clean.
For the price, it feels like good value if you’re trying to extend the life of a nicer pillow while keeping the sleep surface soft and breathable. It’s one of those small upgrades you don’t think about much once it’s on, which is kind of the point. It just works and helps me sleep more comfortably.
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Reviewed in the United States on January 1, 2026