* Some items are excluded due to manufacturer restrictions. Leaf springs sold individually or in pairs are excluded. Only one coupon code may be applied per order. Coupon codes may not be combined with other discount codes or applied to prior orders. Coupon codes may or may not apply to sale items, depending on the item.
The ReadyLift 44-30601 for the GMC Sierra 2500HD/3500HD is designed to provide 6 inches of suspension lift. With this extra lift height, it provides the ability to install larger tires under your vehicle, fitting up to 37" tires. This kit includes both front and rear crossmembers, heavy duty cast iron knuckles, differential drop brackets, strut spacers, rear blocks, front and rear SST3000 shocks and all the necessary hardware required for the installation. While this kit is designed to provide additional suspension lift, it also improves off-road performance, improve ground clearance and lastly, give your truck a brand new look!
Features and Benefits:
6 inch front lift / 4 inch rear lift
Heavy duty cast iron steering knuckles
Made in the USA
Includes Readylift SST3000 Shocks
Increase ground clearance
Allows for up to 37" tires (Trimming may be required)
Use of Auto 4 Hi feature not recommended after lifting vehicle
Not for use on Trail Boss, AT4 or Denali models
Not compatible with adaptive ride control suspension
Please note, when lifting a vehicle and installing aftermarket wheels and tires, a tire manufacturer's construction and material quality can alter vehicle ride quality. When increasing a vehicle wheel and tire size, most larger aftermarket truck and SUV tires are 10-ply (or more) E tires compared to typical OEM 6-ply C tires. This more rigid sidewall construction increases the perception of suspension stiffness often described as ride harshness. The ride, handling, traction, noise, fuel economy, and wear differences between All-Season, All-Terrain, Mud-Terrain, or Trail-Terrain type tires can be significant. Please take into account tire and wheel choice will generally have a meaningful impact on the ride & handling experience.
NOTE: This kit is NOT COMPATIBLE with vehicles equipped with rear composite mono-leaf springs. The mono-leaf is easily identifiable – the U-bolt is round/circular around the top of the leaf spring. This kit only works with vehicles equipped with traditional steel leaf springs – identified by ‘square’ U-bolts.