ReadyLIFT 8" MAX3.3 Suspension System with Falcon 3.3 Shocks - 2025-2026 Chevy Silverado / GMC Sierra 1500

The ReadyLIFT 8" MAX3.3 Suspension System (part 42-35840) is built for 2025-2026 Chevy Silverado and GMC Sierra 1500 4WD trucks. It uses Falcon 3.3 front remote reservoir coilovers and rear piggyback shocks with heavy-duty crossmembers, a skid plate, and differential drop brackets.

Part number: ReadyLIFT 42-35840

Key features

• Falcon 3.3 front remote reservoir coilovers and rear piggyback shocks
• Falcon 3.3 Fast Adjust dampers with a 3-position knob (Soft, Custom, Firm) and an 8-position Micro Adjust dial
• Boxed steel front and rear crossmembers
• Full-width front skid plate
• 1/4" boxed plate steel differential drop brackets with double gussets and a center rib
• 5" fabricated rear lift blocks with integrated bump stop landings
• Includes a Falcon coil spring compressor

What's included

• Falcon front coilovers (left and right)
• Front cross member, rear cross member, and skid plate
• Driver, passenger, and rear differential drops with spacer and crush sleeve
• Driver and passenger sway bar brackets and cam block-off plate
• Pro Comp driver and passenger knuckles
• Driver and passenger 5" fabricated rear blocks
• Rear brake line bracket and rear ABS bracket
• CV axle spacers
• U-bolts with barrel nuts and heavy washers
• RL universal add-a-leaf
• Falcon 3" spring compressor with hardware
• Hardware packs

Fitment

• 2025-2026 Chevy Silverado / GMC Sierra 1500 4WD
• On AT4 or Trail Boss, net lift is 6" over factory height; on AT4X or ZR2, net lift is 6" over factory height and the Multimatic shocks are removed
• Not for diesel or Denali models
• Not compatible with Adaptive Ride Control, Multimatic suspension (if retained), rear mono-leaf springs, or Super Cruise
• Single cab not validated by ReadyLIFT
• Use of Auto 4 Hi is not recommended

Tire fitment

• Recommended, no trimming: 37x12.50 on 20x9 wheels with 0 offset
• Max with trimming: 37x12.50 on 20x10 wheels with -18 offset (trim front valance, felt liner edges, and mud flap)
• ReadyLIFT bases its wheel and tire recommendations on specific wheel and tire brands, and sizes vary by manufacturer, so test-fit every wheel and tire combination before installation.

Install notes

• Estimated installation time: 10 hours +/- 1 hour (excludes alignment and wheel/tire assembly).
• Read the instructions completely before starting. ReadyLIFT recommends installation by a certified mechanic.

Questions about fitment? Email [email protected] with your year, make, model, and trim before ordering.