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ReadyLift 69-3920 2.0'' Front with 1.0'' Rear SST Lift Kit

  • Based on 176 reviews
Condition: New
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$522.19 Why this price?
New Year Deal · 21% off was $659.95

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Returnable until Jan 31, 2026

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Availability: 13 left in stock
Fulfilled by 4Wheel Online

Arrives Tuesday, Jan 6
Order within 3 hours and 12 minutes
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Features

  • Fit type: Vehicle Specific

Description

ReadyLIFT customers have asked for it and we have delivered. Last fall we announced our new leveling and SST lift kit offerings for the all-new GM 1500 trucks. We specifically did not include the factory lift kit-equipped GMC AT4 and Chevy Silverado Trail Boss. The AT4/Trail Boss are factory equipped with a 2" front lift. This front lift includes a longer front shock/strut assembly. When combining a traditional leveling kit on these factory lifted trucks, several issues present themselves including binding problems with the factory control arm ball joint and contact concerns with the lower strut/CV axle assembly. The 69-3920 SST Lift Kit works with the factory 2" front lift. This kit includes a top mount strut spacer along with a pre-load spacer to limit droop and the same premium grade upper control arms now available in our 66-3921 leveling kit. OE style 3" tall cast iron rear lift blocks and rear bump stop extension cups are also included to create a true AT4/Trail Boss- specific bolt-on lift kit that provides 2" of front lift and 1" of rear lift. This new lift kit concept is similar to our successful TRD Pro Plus 2 SST Lift Kit which is also engineered specifically to work with that factory OE suspension lift. Your trust in ReadyLIFT to provide high-quality, precision engineered products is extremely important to us. You can be assured that this all-new SST lift kits are the absolutely most reliable and best performing suspension upgrade option for the AT4/Trail Boss trucks. AT4 - Max tire 305/55-20, 20x9 0 offset wheelTrail Boss - Max tire 295/65-20, 20x9 0 offset wheel

Brand: Readylift


Auto Part Position: Rear


Material: Cast Iron


Included Components: 2.0'' Front with 1.0'' Rear SST Lift Kit


Maximum Lifting Height: 2 Inches


Brand: ‎Readylift


Auto Part Position: ‎Rear


Material: ‎Cast Iron


Included Components: ‎2.0'' Front with 1.0'' Rear SST Lift Kit


Maximum Lifting Height: ‎2 Inches


Manufacturer: ‎ReadyLift


UPC: ‎804879610472


Global Trade Identification Number: ‎72


Automotive Fit Type: ‎Vehicle Specific Fit


Model: ‎69-3920


Item Weight: ‎40 pounds


Product Dimensions: ‎28.75 x 21.25 x 7.75 inches


Item model number: ‎69-3920


Exterior: ‎Machined


Manufacturer Part Number: ‎69-3920


OEM Part Number: ‎69-3920


Date First Available: September 5, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jan 6

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • It’s worth it.
Excellent quality parts. This is an excellent kit for the Trailboss/ AT4. It’s a piece of cake to install. Really not much to it. Do have to disassemble the front struts though. Took me just over three hours including alignment. I am a Dealer tech by trade though. I also installed Vision 388 Shadow in 20x9 and 34” Nitto Grappler G2’s. Truck looks much better now. The lift was only 1.75” in the front though, but whatever.... ... show more
Reviewed in the United States on April 11, 2021 by David W. Scott David W. Scott

  • Exactly what I wanted
This kit fits and makes the truck look amazing. Had it professionally installed and couldn’t be happier!!!
Reviewed in the United States on November 10, 2024 by Ryan Ryan

  • Nice kit with upgraded components- except the U bolts
I'm not going to trash the review because of the U bolts. The ones in my kit did not accept the bolts cleanly, chipping paint and heating up during tightening. I had new thicker,stronger bolts fabricated. The kit overall is nice and adds a good lift. I had an 1.5" leveling kit removed and this installed with new shocks all around. An alignment followed and the ride is firmer and more stable feeling than stock. The RL site had "test" truck measurements for tire fitment. Adding 1.5" spacers with this worked just fine. 2019 Chevy Trail Boss Custom on 35x12.5x20 ... show more
Reviewed in the United States on December 8, 2024 by SF GIANT-49ER SF GIANT-49ER

  • Perfect
Easy install if you are mechanically inclined. Have a couple thousands miles on the kit and still loving it
Reviewed in the United States on April 25, 2025 by Aaron Stephens

  • Ride quality
The kit fit perfect. There were no issues with the rude quality of the tru k after installation. Looks awesome!
Reviewed in the United States on May 15, 2025 by Jared

  • 22' silverado lt trail boss 3.0 duramax refresh
This kit was perfect for my silverado 22' lt trail boss 3.0l duramax....it lifted it 2" on top of the factory 2" so 4" in total and for $700 you cant beat the upgraded look it gets....I wanted a 6" lift in total but didnt want to spend 2k on it so the best of both worlds, a good upgrade at a better price ... show more
Reviewed in the United States on May 5, 2025 by Juan Jose Mallen Torres

  • Best on the market
Just what I was looking for, Perfect stance and easy to install
Reviewed in the United States on January 27, 2025 by Jack Peek Jack Peek

  • Not Much of a Difference
I wish I would have gone with a higher lift on my 2021 Sierra 1500 AT4. This lift fit on nicely, but it did not raise the truck noticeably.
Reviewed in the United States on July 8, 2025 by Michael Berlin Michael Berlin

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