ReadyLIFT 3.5" SST Lift Kit for 2017-2022 Ford F-250/F-350 Super Duty (4WD only)

$739.95
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Kits for the 2017 Super Duty

ReadyLIFT previews its leveling, SST and lift kits for the F-250 and F-350.

What an SST lift kit does

ReadyLIFT explains how its bolt-on SST lift kits add lift and room for larger tires while keeping the factory ride.

Kits for the 2017 Super Duty

ReadyLIFT previews its leveling, SST and lift kits for the F-250 and F-350.

What an SST lift kit does

ReadyLIFT explains how its bolt-on SST lift kits add lift and room for larger tires while keeping the factory ride.
SST Lift Kits by ReadyLIFT: Coil spacers, track bar bracket, shock brackets, tapered rear blocks and U-bolts on white.

Ready for daily duty

A lifted stance with bigger tires still has to commute, tow and haul. SST kits keep a small rear rake so the vehicle sits right with weight in the bed or on the hitch.

Frequently Asked Questions

Straight answers on specs, fit and support

How is an SST kit different from a leveling kit?

A leveling kit raises only the front to cancel the factory rake. An SST kit lifts the front and the rear, so the whole vehicle gains height.

What is the largest tire it clears?

The tire size ReadyLIFT lists for this exact vehicle is in the specifications on this page. Tire dimensions vary by brand, so test fit your wheel and tire combination before mounting.

Will I need an alignment after installing it?

Yes, plan on one. ReadyLIFT notes the vehicle may need an alignment after installation, and headlamp aim should be checked at the same visit.

Does it affect driver-assistance cameras and radar?

Changing ride height can shift camera, radar and sonar aim. ReadyLIFT says to check and recalibrate these systems after installation, and some vehicles need dealer tools to do it.

Can I install it myself?

ReadyLIFT recommends a certified mechanic and says to read the instructions fully before starting. The install sheet and ReadyLIFT's estimated install time for this exact kit are on this page.

Is an SST kit covered for off-road use?

ReadyLIFT's warranty excludes damage from off-road abuse on its lift kits. Its Jeep SST and Terrain Flex kits are the exception and remain covered in recreational off-road use.

What our customers say

4.9 · 7 reviews

Photos from owners

+8
JonC. Verified
11/11/2025

Great lift for the money!

Installed the 3.5" lift but opted for a 5" block in the rear. Love the ride.

Omeezy71 Verified
11/08/2025

Just what i was looking for

I bought this 3 months ago and i am pleased with this product! I would totally recommend, fits 37x12.50 really good just rubs on full turn

JBay83 Verified
06/15/2025

Great lift for 2020 F350 SRW!

After looking around and deciding to go with this lift I don’t think I would do anything different! Looks awesome and rides just like stock!

A-ARON Verified
08/24/2026

Easy to install

Fairly easy to install. However if you have a 6.2 boss I would recommend getting a 5inch block in the rear for a more level look.

LittleBearLLC Verified
10/24/2025

Great product; but!!!!

I bought this right after March finally got time to install about a month ago install wasn’t pad in my garage by myself. I have a 2018 f350 limited and I’m running 35x12.5x20 in mickeys mts on 12x20 -44 offset i do have rubbing on the rear of both front wheel wells. It’s like the radius bracket should be moved forward a half in but the kit does look great on the truck. I still wish i went 6 in but I’m happy i would not try running 37s though i would rub bad.

Sdeleon Verified
07/16/2026

3” ready lift leveling kit

Installed this 3” ready lift leveling spacer on my 2021 turned out perfect and gave me the exact height I was looking for, the only thing I didn’t use out of the kit were the rear blocks. I used 3 inch blocks instead of the 4” that it comes with. By doing that my trucks at perfectly level all the way around at 44 inches from the concrete to the top of my wheel well

Anonymous Verified
12/15/2024

Great kit at a great price!

Kit was perfect for my 2017 F-250. Love the way it looks and rides. Gave me the clearance I needed and the ride quality I wanted. Would definitely recommend.