SKU: 21160894074

2020-2022 Superduty 4" FOX 2.5 Performance Elite Conversion Kit (BDS1563FPE)

Sale price$3344.63 Regular price$3716.26
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Description

2020-2022 Superduty 4" FOX 2.5 Performance Elite Conversion Kit (BDS1563FPE)Built to outperform, upgrade your Ford F350 Dually Super Duty diesel powered truck with this 4 inch radius arm lift kit and FOX 2. 5 Performance Elite Coil over conversion from BDS Suspension. Designed to improve stance, performance, and capability, this kit includes everything necessary to set your dually truck up right with clearance for up to 37 inch tires. Features FOX 2. 5 Coil Over mounts in factory coil bucket location Adds additional secondary

Built to outperform, upgrade your Ford F350 Dually Super Duty diesel powered truck with this 4-inch radius arm lift kit and FOX 2.5 Performance Elite Coil-over conversion from BDS Suspension. Designed to improve stance, performance, and capability, this kit includes everything necessary to set your dually truck up right with clearance for up to 37 inch tires.

Features
  • FOX 2.5 Coil-Over mounts in factory coil bucket location
  • Adds additional secondary FOX 2.0 shock for max performance
  • Eibach coil springs ride smooth through the roughest terrain
  • Heavy duty tubular steel radius arms that correct caster while maximizing ground clearance
  • Track bar relocation bracket and pitman arm maintain proper steering angles for improved handling
  • Fabricated steel blocks provide level stance from front to rear
  • FOX shocks are fully serviceable and resistant to corrosion and harsh environments
  • Increased off-road capabilities
  • Easily adjust your shock for terrain, load and speed

Shock Features

FOX 2.5 Performance Elite shocks offer next level performance for on-road comfort and off-road capability. Tuned and ready to install right out of the box, these bolt-on 2.5-inch diameter shocks are built for abuse and packed with race-proven technology. They include a remote reservoir for additional fluid capacity to keep your shocks running cool so you can push the limits in the rough terrain. The Dual Speed Compression adjuster adds remarkable versatility and precise tuning with a simple twist of either two adjuster knobs, offering 10 separate low-speed and 12 high-speed compression levels, with a black anodized aluminum reservoir to increase cooling efficiency.

  • 2.5-inch Impact extruded aluminum body
  • Massive 7/8-inch hard chrome plated heat-treated alloy steel shaft
  • External reservoir design separates shock oil from the high-pressure nitrogen
  • Dual Speed Compression Adjuster comes standard
  • Fully serviceable for a lifetime of use
  • 1-year Manufacturer's Warranty

Radius Arm Features

In place of the factory stamped steel radius arms BDS supplies a pair of high-strength tubular radius arms. These arms mount into the factory location and offer caster adjustment for a wide range of lift heights along with an OE-style rubber bushing at the frame mount for smooth, quiet, service-free operation.

Specs
  • Front Lift Method: Coil-Over
  • Rear Lift Method: Block
  • Front Lift Height: 4 inch
  • Rear Lift Height: 2 inch
  • Shocks Included: Yes
Notes
  • Removal of the factory leaf spring block is required. The net rear lift will vary depending on the height of the factory block but will result in a level stance.
  • If equipped with a 2-piece rear driveshaft, a Carrier Bearing Drop Kit may be required (BDS123402).
  • Torque wrench capable of 405 ft-lbs required.
  • 37 x 12.50 tires may require minor trimming.
Includes
  • BDS013317 - 2020-2022 Ford F-250/F-350 3In Rear Box Kit (UPC 658848613281)
  • BDS013414 - 2017-2024 Super Duty 4 inch Front Box Kit (UPC 658848613458)
  • BDS123251 - 2005-2022 Ford F250/F350 Radius Arm Kit, Pair (UPC 711745604087)
  • BDS123613 - 2017-2024 Super Duty Coil-over Mount Kit (UPC 711745604407)
  • BDS85431 - 2017-2024 F250/F350 Single Stabilizer (UPC 711745609242)
  • FOX88406427 - Kit: BDS 2005-On Ford SD Front Coilover, 2.5 Truck Fox Performance Elite Series, R/R 4 inch Lift, Dual Speed Compression Adjust
  • FOX98224700 - Fox 2.0 Shock 25.65 x 16.05 x 2, S50/EB1, Qty 2
  • FOX98224718 - Fox 2.0 Shock 33.85 x 20.75 x 2, EB1/EB1, Qty 2
Manufacturer Description

Up front the lift kit includes diesel-specific FOX 2.5 coil-over shocks, heavy duty replacement radius arms, forged drop pitman arm and track bar bracket for steering correction, sway bar relocation, and brake line brackets. To optimize steering geometry once lifted, a forged drop pitman arm is used to minimize the steering angle and pair it with a heavy duty track bar drop bracket to keep them in phase through suspension travel while recentering the front axle. In the rear this kit utilizes a high-strength fabricated lift block, longer u-bolts, brake line brackets and a matching set of FOX Performance shocks.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 21160894074

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4.5 ★★★★★
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Kay Hairston
Port Orchard, US
★★★★★ 5
this is my go to when needing new underwear.
Size: 3X-Large, Color: Black/Navy/Dark Purple/Red
Love these boyshorts for women. They're so comfortable, no crawling and breathable. I recommend for plus size women who has legs rubbing together causing irritation. Nice price as well. This is my go to when needing new underwear.
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Reviewed in the United States on May 27, 2026
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Diane
San Leandro, US
★★★★★ 5
Great!
Size: Small, Color: Black/Heather Gray/White/Nude
Comfy, good fit, good quality cotton and flat seams around the crotch. Normal size small. I wouldn’t wear these with yoga pants, but nice under looser fitting garments. I would buy more colors.
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Reviewed in the United States on May 28, 2026
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Verified Purchase
Arsenio Braga
Grantham, US
★★★★★ 5
There is a seam up the front. I think perhaps it being seamless would be better.
Size: Medium, Color: Black
Like anything off Amazon I wasnt expecting anything perfect and ready to have to mail it back. Pleasantly surprised by the softness and durability. The waist band isn't to small on a medium so it fits actually so comfy. I wear them as underwear and as shorts for my skirts n dresses. Id recommend but I say size up if you want a comfy fit. But down if you want a fitted fit fit. Comfy still is fitted but better feeling on if that makes sense. Also the crotch of the shorts/undies has essentially extra fabric sewed in creating that nice comfort. Ill snag a photo when I have time.
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Reviewed in the United States on May 3, 2026
S
Verified Purchase
Stephanie Vaughn
San Leandro, US
★★★★★ 4
Product varies from package to package
Size: X-Large, Color: Black/Navy/Dark Purple/Red
Over a two year period this is my 4th purchase. They started as sleep shorts and have replaced other underwear most of the time because they are comfortable and the quality is pretty good. However there are differences in between every package. The length has varied up to an inch, the material has changed, and some are slightly tighter than others. That said it works for me. I am a side sleeper and sometimes the side seam bothers me.
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Reviewed in the United States on March 9, 2026
H
Verified Purchase
House of Squawk
Pawtucket, US
★★★★★ 5
Very comfortable in the Texas heat.
Size: Small, Color: Black/Navy/Dark Purple/Red
I got some of these as a gift and I loved them so much I purchased two more packs. I just opened my new packs and put them in the washer so I'm not leaving a photo. When I wear them they look exactly like they do on the models. I've been doing a lot of heavy outdoor work in the heat and I get drenched. These underwear have a 100% cotton crotch and the rest is 95% cotton and 5% spandex. When I first saw the wide crotch I didn't think I would like it. But these are soooo comfortable. I'm 4'11" and weight 108-112 and the size small fits loosly but well. I could probably get away with an XS but I like this loose and not too tight fit. I see some folks say these roll up. They don't roll up on me. I think they might roll if they were tight fitting. I have lots of other undergarments like these and some roll and some don't. But none of the others are cotton. They are mostly spandex and since I've found these in cotton that's all I'm wearing until summer is over. I can't feel them or see them under pants or skirts. These look more like shorts than underwear and they have a very nice thickness. Since I only had four pair to begin with, those got washed and dryed a lot. I can't tell if they shrunk since I only tried them after washing. Sorry I forgot to compare the size of the new ones to the older ones before I threw them in the washer. I'll probably buy another set and compare at that time. One thing I can report is that they do not fade at all. I just washed the black, purple and red colors with the white color and the white is still completely white. Now I have more colors and I'll probably be walking around in my underwear and no one will know. The only con I can think of is the wide crotch wouldn't work well with pads with wings, in my opinion. Try a size larger for a nice cool pair of sleeping shorts to see how they fit while they are on sale. Then go smaller if needed. I think you might enjoy these.
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Reviewed in the United States on July 10, 2024

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