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Product Overview
Your GM 2500HD AT4X or ZR2 sits rear-end high from the factory. This kit brings the back down to level with the front — no front-end work needed.
Built specifically for the AT4X and ZR2, it bolts on in an afternoon with no cutting or welding. The tapered leaf spring shims reset your pinion angle so the driveline stays true and the ride stays smooth.
Fits: GMC Sierra AT4X 2024, 2025, 2026
Features:
- Levels the factory-high rear end for a clean stance
- Built specifically for GM 2500HD AT4X and ZR2
- Tapered shims correct pinion angle
- Heavy-duty U-bolts and center pins rated for full 3/4-ton duty
- Rear-only, bolt-on install — no cutting or welding
- Retains factory ride quality and payload
Includes:
- U-Bolts (4)
- Center Pins (2)
- Leaf Spring Shims (8)
Notes: Specifically designed for 2024+ GM 2500HD AT4X / ZR2 models only.
McGaughys Part Number - 52449
Brand (Manufacturer) Info
McGaughy's Suspension is a world-famous manufacturer of top-of-the-line and award-winning classic lifting and lower truck and car suspensions. Based in Fresno, California, McGaughy's Suspension has been around for close to four decades now. The company is also known for its easy-to-install parts that are manufactured and engineered in-house.
McGaughy's Suspension has its laser cutters, press breaks, tubing benders, shear, CNC machines, etc., so they provide the best products at the most affordable prices. They also aim to always stay on top of the ever-evolving O.E.M suspension systems. Their newest addition is their line of lifting suspension that has impressed and amazed even the most experienced in the industry.
