QSA 3" Keys + 3" Blocks + U-Bolts + Shock Extenders - Compatible 2000-2010 CHEVY GMC 1500HD 2500HD 3500HD Silverado Sierra Fits RPO Codes FT2, FT3, FT4, FT5, FT6, FT7 Codes in Glove box!

Compatible with: 2000 - 2010 Chevrolet Silverado 1500HD, 2500HD, 3500HD Models, GMC Sierra 1500HD, 2500HD, 3500HD Models, Chevrolet Avalanche 2500, Chevrolet Suburban 2500. DOES NOT FIT 1500 (non-hd) models!! MUST HAVE Torsion bar front suspension and Leaf Spring Rear Suspension. U-bolts do not fit vehicles with Overload Springs. These require longer U-bolts. CHECK RPO Codes (typically located in Glove Box): These torsion keys fit the following codes: FT2, FT3, FT4, FT5, FT6, FT7 IF You have a different code, send us a message first so we can assure you get the correct key. Or check our other listings! FITS THE FOLLOWING APPLICATIONS: - 2000 - 2010 Chevrolet Silverado 1500HD (MUST BE HEAVY DUTY -- HD Model) - 2000 - 2010 Chevrolet Silverado 2500 / 2500HD - 2000 - 2010 Chevrolet Silverado 3500 / 3500HD - 2000 - 2010 GMC Sierra 1500HD (MUST BE HEAVY DUTY -- HD Model) - 2000 - 2010 GMC Sierra 2500 / 2500HD - 2000 - 2010 GMC Sierra 3500 / 3500HD IMPORTANT FITMENT NOTES (READ THESE BEFORE PURCHASING!!!): -- Does NOT Fit 1500 (non-HD models) -- ONLY fits models with these RPO Codes: FT2, FT3, FT4, FT5, FT6, FT7. Please check your glove box for your code list. If you have other codes, please see our other listings.

• See Description Below for applications (2000 - 2010 Chevy / GMC HEAVY DUTY MODELS)
• Includes: Heavy Duty Forged Torsion Keys (L+R), Shock Extenders, 3" Lift Blocks, AND U-bolts
• Allows for leveling (lifting) the Front of Your Vehicle Between 1" - 3" in the front and 3" in the rear.
• Torsion keys Have High Quality Powder Coated Finish to Protect from Rust
• Blocks are tapered to correct for pinion angle