🚀 Elevate your GM 1500’s style and performance with precision-engineered lift!
The ReadyLift 66-3921 Leveling Kit delivers a precise 1.75-inch front lift tailored for GM 1500 AT4 and Trail Boss trucks. Crafted from durable alloy steel, it includes heavy-duty tubular upper control arms with advanced Terrain Control Technology bushings to maintain factory suspension geometry and improve alignment retention. This kit enables fitting larger tires up to 305/60/20, enhancing your truck’s aggressive stance without sacrificing ride quality or steering responsiveness. Easy to install and engineered for vehicle-specific fit, it’s the ultimate upgrade for leveling and performance.
| ASIN | B07XD7YXML |
| Auto Part Position | Front |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #253,148 in Automotive ( See Top 100 in Automotive ) #435 in Automobile Chassis Body & Suspension Lift Kits |
| Brand | Readylift |
| Customer Reviews | 4.6 4.6 out of 5 stars (124) |
| Date First Available | September 5, 2019 |
| Exterior | Machined |
| Global Trade Identification Number | 00804879610489 |
| Included Components | 1.75'' Leveling Kit |
| Item Weight | 24 pounds |
| Item model number | 66-3921 |
| Manufacturer | ReadyLift |
| Manufacturer Part Number | 66-3921 |
| Material | Alloy Steel |
| Maximum Lifting Height | 2 Inches |
| Model | 66-3921 |
| Product Dimensions | 16 x 12 x 6 inches |
| UPC | 804879610489 |
B**R
A must have for all Trail Boss/AT4 owners!
A must for any Trail boss/AT4 owner. This kit lifts the front of the vehicle 1.5 inches and the vehicle sits completely level from front to back. On top of that, I was able to upgrade to a bigger tire. I’m now using a 305/60/20 with 20x9 inch wheels with a 0mm offset. Fitting 35s in the truck with very minimal fender trimming is a big win. As for the parts themselves, extremely quality and much more durable than the factory control arms. The ride quality is not jeopardized at all, in fact, it seems to make the steering lighter. The install was very easy, but I would recommend a partner to help!
K**D
Great leveling kit and great price
This 1.75” readylift leveling kit fit my 2021 Silverado perfectly. All parts were accounted for and it installed with ease. I received it very quickly and it gave my truck a totally different look.
A**N
Perfect for AT4
Perfect for my 2024 GMC AT4. Got a great deal on Amazon when ready lift site was out of stock, was $120 cheaper than manufacture as well. Very satisfied!
L**S
Lift kit
Well made and perfect fit. The best leveling kit out in the market
J**H
Fits 2026 LT Trail Boss
No issues with install, it’s exactly as advertised.
B**.
Beware of denting, scratches, and paint chips on the control arm
A good product but I am being charged a restock fee for an item that showed up defective at my door. The packaging on this item is not good. The spacer bounces around on top of the control arm during shipping and causes dents, scratches and the paint to chip! This is unacceptable and I would appreciate you making this right. I should not be charged a restock fee, period.
J**E
Nice look
Made the truck stand out great. Love it. GMC sierra AT4
B**E
Exactly what I wanted with 35x12.50 R18s
I’m posting this just because I couldn’t find anything when I looked before buying this lift. I have a 2020 trial boss, I bought this kit installed it, and was able to put 35x12.50 R18s on it with zero rubbing. BUT I had to install a 1/4 spacer on both sides and had to do a “mudflap delete”. But again it fits and I have zero rubbing and it turned out exactly how I wanted it.
N**D
The kit came complete, no missing parts. The upper control arm is quite beefy and keeps the factory dynamics . It gave my 2019 AT4 a better look and stance while keeping the original ride comfort.
A**E
Exactement se que je voulais. Bon kit, bonne qualiter, shipping rapide.
TrustPilot
1天前
1 周前
