HSP Diesel 70in Bolt On Traction Bars For 3.5in Axle Diameter 2001-2010 Chevrolet And GMC LB7 / LLY / LBZ / LMM Duramax

HSP 70" Bolt-On Traction Bars 3.5in Axle Diameter for 2001-2010 Chevrolet / GMC Duramax LB7 / LLY / LBZ / LMM

The 035-2-HSP, or HSP 70" Bolt-On Traction Bars for 3.5" axle diameters, are built for the 2001-2010 Chevrolet and GMC Duramax trucks. These bars arent just for modified rigs—this kit performs exceptionally well on stock trucks, daily drivers, drag builds, and everything in between.

Why You Need the HSP 70" Traction Bar Kit

Diesel trucks tend to be front-heavy due to their large engines, plow equipment, and other accessories. With less weight over the rear tires and the high torque output of Duramax engines, this often results in wheel hop—a violent up-down motion of the wheels while trying to gain traction. Though it may seem harmless, wheel hop can damage driveshafts, axles, u-joints, and more. If you're spinning, you're not winning—and traction bars are the solution.

What Makes HSP Traction Bars Different

The HSP 70" bars anchor the axle to the frame, eliminating unwanted movement under load. This ensures smoother power delivery to the ground. Our traction bar kits are engineered to last—no clunky fitment or inferior parts here. Whether you're launching hard at the track or pulling a trailer, HSP traction bars have been proven over millions of miles. They're easy to install and built for long-term performance.

Whats Included

• 1x 70" Bolt On Traction Bar (HSP-IN-678-2)
• 1x 70" Bolt On Traction Bar (HSP-IN-678-2)
• 1x Front Traction Bar Bracket Left (HSP-IN-657-D)
• 1x Front Traction Bar Bracket Right (HSP-IN-657-P)
• 1x Rear Traction Bar Bracket (01-10) (HSP-IN-663-1)
• 1x Rear Traction Bar Bracket (01-10) (HSP-IN-663-1)
• 4x 1/8" Aluminum Rivet (RFB-098-RFAB)
• 2x Small HSP Logo (Flat) (RFB-752-F-RFAB)
• 4x Polyurethane Bushings (RFB-835-RFAB)
• 2x Bushing Inserts (DOM Tubing) (RFB-836-RFAB)
• 8x 1/2"-13x1-1/4" Grade 8 Bolt (RFB-845-RFAB)
• 16x 1/2" Washer (RFB-846-RFAB)
• 8x 1/2"-13 Nylon Lock Nut (RFB-847-RFAB)
• 2x 5/8"-11x3-1/4" Grade 8 Bolt (RFB-848-RFAB)
• 2x 5/8"-11x3-3/4" Grade 8 Bolt (RFB-849-RFAB)
• 4x 5/8"-11 Nylon Lock Nut (RFB-850-RFAB)
• 8x 5/8" Washer(RFB-851-RFAB)
• 2x Flex Joint (3/4"-16 Thread, Bolt Dia. .625") (RFB-721-RFAB)
• 2x Jam Nut (3/4"-16) (RFB-722-RFAB)

Fitment

• LB7: 2001-2004 (VIN Code 1)
• LLY: 2004.5-2005 (VIN Code 2)
• LBZ: 2006-2007 (VIN Code 2 or D)
• LMM: 2007.5-2010 (VIN Code 6)

VIN Info: The 8th character of the VIN indicates the engine; the 10th character identifies the model year.

Special Notes

• These 70" traction bars are designed to fit Crew Cab and Extended Cab trucks with 6-foot beds.
• If you prefer a longer traction bar look, or if your truck has over 4" of rear lift, we recommend the 75" bars (Part Number: 035-3-HSP).
• Contact us if youre unsure about the correct size for your truck.

Overview

• Complete bolt-on installation for most applications
• Available in custom and standard powder coat colors
• Upgraded rear brackets for added strength
• No special tools required for install
• Improves traction and power delivery
• Multiple length options for proper fitment

Our Warranty

HSP NO BS LIMITED LIFETIME WARRANTY

At HSP, we believe in our products and stand behind every part that leaves our facility. We've always taken care of our customers, and with our official "No BS" warranty, were formalizing that commitment. Its straightforward, transparent, and built to protect your investment.

For more information about our Lifetime No BS Warranty, click HERE.