Shipping Estimate
USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Synergy 8650-12 2.5" Leveling KitLevel your 2005 2023 Ford F 250 350 with the Synergy 8650 12 Leveling System from GAP. This system lifts the front of the truck 2. 5" and includes all the components necessary to ensure your truck rides and handles better than stock. The springs are progressively wound and when matched with the Fox shocks provide a soft ride while increasing bottoming resistance and allows for 9 3 4" of travel. The increased travel Fox shocks are protected from damage
Level your 2005-2023 Ford F-250/350 with the Synergy 8650-12 Leveling System from GAP. This system lifts the front of the truck 2.5" and includes all the components necessary to ensure your truck rides and handles better than stock. The springs are progressively wound and when matched with the Fox shocks provide a soft ride while increasing bottoming resistance and allows for 9 3/4" of travel. The increased travel Fox shocks are protected from damage by the 1' Synergy bump stop spaces. The factory brake lines are retained and allow for the increase in height by utilizing the Synergy brake line relocation brackets. By using these brackets factory ABS clips are preserved so there is no need to bleed the brakes after installation. Caster shims are provided to maintain the vehicles factory handling and steering response after leveling. The Synergy Ford leveling system allows up to 37-inch tire with correct backspacing.
Features:
- Increased Travel
- No Loss In Towing Capacity
- Increased Bottoming Resistance
- Increases Ride Comfort And Control
- Maintains Stock Driving Characteristics
- Will Allow Installation Of Up To 37 Inch Tires
- Raises The Front Suspension To Level The Truck
- CNC Machined 6061-T6 Aluminum Bump Stop Spacers
- Bolt On Installation; No Modifications Required To Install
- Affordable Quality And Performance; Proudly Made In The USA
- Front Wheel Travel Is Increased 30 Percent From 7-3/4-Inches To 9-3/4-Inches
- Caster Shims Are Made From High Strength 1045 Steel And Zinc Plated For Corrosion Protection
- Brake Line Relocation Brackets Are Laser Cut And Zinc Plated For A Precise Fit And Prolonged Life
- Coil Springs Feature An Abrasion-Resistant Powder Coat Finish For Maximum Durability And Corrosion Resistance
- Progressive Wound Multi Rate Coil Springs Are Manufactured Using The Latest In CNC Hot Winding Technology For Optimized On And Off Road Performance
- The Coils Are Designed To Be Able To Set Solid (Fully Collapse) Without Overstressing The Material And Are Pre-Set From The Factory Meaning The Springs Will Never Settle Or Sag
Includes:
(1) 8664-25 2.5" Leveling Springs, Pair(2) Fox Front IFP Smooth Body Shocks
(2) Fox Rear IFP Smooth Body Shocks
(1) 8657-01 1" Front Bump Stop Spacers
(1) 8612-24 Caster Sleeve Kit
(1) 8673-01 Sway Bar End Link Spacer Kit
(1) 8682-01 Front Brake Line Relocation Brackets
(1) 8650-01 Fox Shock Eyelet Sleeve
Notes:
Fits 35x12.50 with no trimmingMinor fender trimming needed to fit 37x12.50 depending on wheel backspacing.
Applications:
2005-2023 Ford Super Duty F-250 4WD (6.0/6.4/6.7 Powerstroke)2005-2023 Ford Super Duty F-350 4WD (6.0/6.4/6.7 Powerstroke)
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
4.8 ★★★★★
Based on 1504 reviews
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Product Reviews
★★★★★ 5
LOVE THEM!!
Size: Small, Color: (001) Black / Black / Castlerock
LOVE! These socks are so comfortable! I wear a 5 in women's and a 3 in big kid shoes. The small fit me perfectly. I see where some say they run small but I can't say that was an issue for me. They are "snug" but thats what you want with a no show sock. I feel they have support vs the ones i used to buy at Walmart. They are very soft! I am actually buying more today and throwing my other ones in the trash!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
★★★★★ 5
So will not write down your foot
Size: Medium, Color: (001) Black / Black / Castlerock
I love these socks. They have a little bit of gel on the top of the heel for support in your tennis shoes and so your socks don’t write down. Very good quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
★★★★★ 5
Comfy and Stay Put
Size: Medium, Color: (002) Black / Black / Halo Gray
These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all.
The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day.
They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable.
Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 16, 2026
★★★★★ 5
Perfect sucks
Size: Medium, Color: (001) Black / Black / Castlerock
Wonderful socks . The weight is perfect !! These do not slip when in a shoe they stay out !!
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Reviewed in the United States on April 14, 2026
★★★★★ 4
Amazing but quality changed
Size: Large, Color: (002) Black / Black / Halo Gray
Love these socks so much, been buying them for about 4 years now!! Not giving them 5 stars anymore because the quality is different and not as good, durable and thick as before.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 10, 2025
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