








🚙 Elevate your GM game with precision and power — don’t just lift, dominate the road!
The ReadyLift 69-3920 SST Lift Kit is a vehicle-specific suspension upgrade designed exclusively for GM AT4 and Trail Boss trucks. It provides a precise 2-inch front lift combined with a 1-inch rear lift using OE-style cast iron blocks and premium control arms. Engineered to work flawlessly with factory 2-inch front lifts, this bolt-on kit eliminates common binding and clearance issues, supports larger tires, and enhances overall suspension performance for a commanding, aggressive look.





| 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 | 00804879610472 |
| 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 |
A**S
Perfect
Easy install if you are mechanically inclined. Have a couple thousands miles on the kit and still loving it
J**S
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
J**D
Ride quality
The kit fit perfect. There were no issues with the rude quality of the tru k after installation. Looks awesome!
J**K
Best on the market
Just what I was looking for, Perfect stance and easy to install
S**R
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
M**Y
Rides excellent
Got truck 100% level
R**N
Exactly what I wanted
This kit fits and makes the truck look amazing. Had it professionally installed and couldn’t be happier!!!
M**N
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.
Trustpilot
2 weeks ago
1 day ago