6.5" Coil-Over Lift Kit (FOX 2.5) - 01-10 Chevy/GMC HD 4WD 738FDSC

Part # 738FDSC

At the heart of the systems you'll find BDS's tried and true high clearance IFS technology designed to offer more ground clearance while improving the suspension, steering, and driveline geometry. This paired with FOX 2.5 factory series coilovers offers vastly superior damping performance to soak up the harshest terrains offroad while offering comfort on your daily commute. The coilovers are pretuned and ready to install right out of the box featuring a dual speed compression (DSC) adjuster on the reservoir to allow for easy tuning of the high-speed and low-speed compression damping by hand, without the need for special tools. To mount the coilovers BDS supplies a bolt-on bracket that installs on the frame in the shock mount location along with a weld-in support gusset is used to reinforce the upper mount.

In addition to replacing the factory torsion bars, the upper control arms (UCA) are upgraded to improved strength, travel, and accommodate the new coilovers. The uppers are new performance series upper control arms designed specifically for this system to integrate with the 2.5 coilovers. The arms are fabricated from large 1.5" OD x .120-wall tubing, fully welded and gusseted for the highest quality, strength and durability. The factory cast steel lower control arms are retained with the addition of a robust lower coilover mounting bracket. Along with the coilover conversion, these 6.5" coilover systems include a pair of one-piece laser cut high clearance crossmembers, CNC machined ductile iron steering knuckles to correct steering angles, heavy duty front skid plate and differential skid plate to increase protection, multipoint differential relocation brackets to secure differential and correct CV axle angles, CV spacers, and longer sway bar links. In the rear, your options are a 5" rear block and u-bolt kit or replacement GlideRide rear leaf springs with built-in overload leaf. Either option will level the stance and are paired with FOX 2.0 performance series IFP shocks to pair with the front coilovers for impressive performance wherever your the adventures lead you.

Read Truck Trend Magazine's Install Articles
Part 1 & Part 2

Tire & Wheel Combinations

2001-2007 Classic Body Style

- 35" x 12.50" w/16 x 8 and 4-1/2" back spacing

- 35" x 12.50" w/17 or 18 x 9 and 5.5" back spacing

- 37" x 12.50" w/20 x 9 and 5.75" back spacing

2007-2010 New Body Style

- 35" x 12.50" w/16 x 8 and 4-1/2" back spacing

- 35" x 12.50" w/17 or 18 x 9 and 5.5" back spacing

- 35" x 12.50" w/20 x 9 and 5.75" back spacing

• Tire & Wheel Combinations

*Trimming may be required*

• Est. Installation: 8-10 hours
• Difficulty Level (easy 1 - 5 complicated): 4

Important Kit Notes

• 1. Torsion Bar tool required to load/unload the torsion bars
• 2. Some welding required
• 3. Requires frame bracket modification and differential mount modification
• 4. Traction bars will not fit standard cab/short box models and are designed to work on vehicles with 4" to 8" of lift
• 5. 20" wheels with 5" to 5.75" backspacing recommended to reduce trimming
• 6. Not Recommended for Suburban / Yukon models with AutoTrac Transfer Case
• 7. Does NOT work with rear Autoride equipped SUV's
• 8. Fits Diesel Models Only