BDS 6.5 Inch Lift Kit | 2011-2019 Chevy Silverado/GMC Sierra 2500HD/3500 | 5" Rear Block Kit w/ Overload | FOX 2.0 Performance Series

Configured with a 5-inch rear block kit with overload — produces a level to slightly tail-high stance and integrates a u-bolt flip kit with a new spring plate. Paired with FOX 2.0 Performance Series shocks featuring a 2-inch impact extruded aluminum body, internal floating piston (IFP) monotube design, CNC-machined 6061-T6 aluminum mounting ends, a massive 5/8-inch hard chrome plated heat-treated alloy steel shaft, race-developed high-flow piston, application-specific valving, and a long-lasting clear anodized finish.

Overview

This BDS 6.5-inch lift kit is designed for the 2011–2019 Chevy Silverado and GMC Sierra 2500HD/3500 and provides increased ground clearance with fitment for tires up to 37 inches. The front end uses a No Torsion Bar Drop System, mounting the torsion bars directly to the top of the lower a-arm to eliminate the need to drop the torsion bar cross-member. High-clearance 1/4-inch thick laser-cut steel crossmembers and a multi-piece differential relocation bracket system secure the front axle while improving CV angles. CNC-machined ductile cast iron steering knuckles correct steering geometry at the new ride height and are designed to work with factory tie rod ends to maintain proper steering angles. A front skid plate system bolts together to form a rigid subframe for added underbody protection. In the rear, replacement lift blocks install in place of the stock block, retaining ride quality and load capacity. A u-bolt flip kit is also included on applicable configurations for maximum clearance.

Features

• High-clearance design with No Torsion Bar Drop System maximizes ground clearance
• Heavy-duty 1/4-inch thick laser-cut steel crossmembers
• CNC-machined ductile cast iron steering knuckles maintain ESC system compliance and correct steering geometry at the lifted ride height
• Multi-point differential relocation brackets secure the front axle and improve CV angles
• Heavy-duty skid plate system for improved off-road protection
• Torsion bar relocation brackets included
• Sway bar links, bump stop extensions, and stainless steel brake lines included
• Rear lift blocks install in place of stock block, retaining ride quality and load capacity
• U-bolt flip kit included on applicable rear block configurations for maximum clearance
• Choice of NX2 Nitro Series or FOX 2.0 Performance Series shocks
• Factory Protection Plus drivetrain warranty included
• Fitment for tires up to 37 inches

Specifications

• Front lift: 6.5 inches via torsion bar relocation (No Torsion Bar Drop System)
• Rear lift: choice of 3-inch or 4-inch or 5-inch block kit (with or without overload, as selected)
• Crossmember material: 1/4-inch thick laser-cut steel
• Steering knuckles: CNC-machined ductile cast iron
• Brake lines: stainless steel
• Maximum tire size: 37 inches

Installation

• Estimated Time: 8–10 hours
• Difficulty: Difficult
• Tools Required: Cut-off wheel or equivalent, reciprocating saw, torsion bar unloading tool

Important Notes

• A torsion bar tool is required to load/unload the torsion bars.
• A 3-inch rear block kit is recommended for dually applications; the 5-inch rear block kit will not fit dually applications.
• Stock 17-inch and 18-inch wheels cannot be reinstalled.
• Stock 20-inch x 8.5-inch wheels with 6.18-inch backspacing MAY fit with a maximum tire size of 37x12.50 on certain tire sidewall profiles due to clearance to the steering knuckle and sway bar. A minimum 1/4-inch wheel spacer may be required due to tire sidewall profile variations. A wider tire will cause clearance issues with the steering knuckle.
• Factory dually wheels cannot be reinstalled.
• Models with a two-piece rear driveshaft may require part #121612.
• If minor front driveline vibration occurs at highway speeds while in 4WD and the vehicle will be used in this situation regularly, replacing the front driveshaft with a dual Cardan style driveshaft is recommended.