Thank you to all who made Dyno Day special!

🚀 Just Launched - FASS Drop-In Series Diesel Fuel System for Cummins ISX and X15

Monitor your FASS Fuel Filter Life with FASS Connect!
Skyjacker  |  SKU: SKYF17852K-X
12% off

Skyjacker 8.5INKIT 2017F2/350 4WD W/D

USD 3,11536 USD 3,54019

Can I pick up my order or have it installed at your shop?

Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.

How do I know if this part fits my vehicle?

Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.

What if I need to return a product or it’s defective?

Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)

What's the lead time on custom or fabricated parts?

Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.

Description
Skyjacker re-engineered the Super Dutys suspension via an outstanding 8.5-inch 4-Link Conversion. Replace your OEM radius arm mounts with integrated radius arm drop brackets plus upper and lower adjustable control arms. Formed from 2-inch OD x 0.250 wall DOM tubing, both pairs of control arms are adjustable Flex Links. The adjustability allows proper caster settings to improve handling. Flex Links have a forked clevis end at the lower axle mount. The upper bracket mount has 1-1/4 in. forged rod end with RB style rubber bushing. Skyjacker's legendary Softride(R) technology engineered processes achieve maximum wheel travel, ride quality and extends the long-lasting life of the coil spring. Skyjacker specifically engineered this Variable Rate Coil Spring for the Super Duty 4WD Diesel to deliver a smoother ride. A heavy-duty track bar relocation bracket captures the front crossmember on both sides to prevent movement in this high-stress area and to keep the axle centered. A drop pitman corrects steering angle. Lowering brackets realign the front sway bar for maximum sway control. Drop spacers reposition the front bump stops. Front brake line extension brackets correctly reposition the brake lines. A heavy-duty steering stabilizer relocation bracket corrects and enforces the stabilizer connection. A 5.5-inch rear block and U-bolt kit with Softride(R) Technology Add-A-Leaf springs yields a more level stance. Skyjacker Softride(R) Technology enhances every aspect of the add-a-leaf spring performance. E-brake relocation brackets, bump stop spacers, rear braided stainless steel brake line extensions and rear exhaust hanger brackets are included. Front and rear damper capacity enhanced with ADX 2.0 Adventure Series Remote Reservoir Aluminum Monotube Shocks. ADX 2.0 has a race-inspired full-displaced valving system. Nitrogen charged with Internal Floating Piston Technology = Quickest Shock Reaction Time Ever.

This Part Fits:

Year Make Model Submodel
2017-2022 Ford F-250 Super Duty King Ranch
2017-2022 Ford F-250 Super Duty Lariat
2018-2022 Ford F-250 Super Duty Limited
2017-2022 Ford F-250 Super Duty Platinum
2017-2022 Ford F-250 Super Duty XL
2017-2022 Ford F-250 Super Duty XLT
2017-2022 Ford F-350 Super Duty King Ranch
2017-2022 Ford F-350 Super Duty Lariat
2018-2022 Ford F-350 Super Duty Limited
2017-2022 Ford F-350 Super Duty Platinum
2017-2022 Ford F-350 Super Duty XL
2017-2022 Ford F-350 Super Duty XLT

Why Choose FASS Motorsports?

Well worth the price. Quality product. Fast shipping. And great customer service from FASS.
Johnathan Manning
Verified Customer
Product Reviewed
S&S Diesel Gen2.1 CP4 Disaster Prevention Bypass Kit Ford 2011-2025 6.7L Powerstroke
Ordered 1/27 and received 1/28. Couldn’t be happier with quick shipping and awesome customer service.
Josh Holliday
Verified Customer
Product Reviewed
Synergy 03-13 Dodge Ram 1500/2500/3500 4x4 Heavy Duty Tie Rod
FASS Heavy Duty Fuel System purchased and installed at FASS Motorsports. Great product, great service, great people
Robert Vanmeter
Verified Customer
Product Reviewed
FASS Industrial Series Diesel Fuel System Class 8 Semi DD15 290GPH

Also in: