2" SST Lift Kit: 2026 GM AT4 & Trail Boss

NOTE: Use of Auto 4 HI feature not recommended. NOTE: This GM 1500 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. NOTE: Not compatible with Sierra AT4X or Silverado ZR2 Edition.

Professional Installation Available: Complete your upgrade with professional installation from Total Appearance. Our automotive accessory technicians can verify vehicle fitment, install this product using the appropriate manufacturer procedures, and complete a final quality check before delivery. Request an installed quote for product compatibility, labor pricing and scheduling.