HSP Diesel 77in Bolt On Traction Bars For 3.5in Axle Diameter 2001-2010 Chevrolet And GMC LB7 / LLY / LBZ / LMM Duramax
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Colours and prices as published by HSP Diesel · verified 9/8/2026
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HSP 77" Bolt-On Traction Bars 3.5in Axle Diameter for 2001-2010 Chevrolet / GMC Duramax LB7 / LLY / LBZ / LMM The 035-3-HSP traction bars are designed for 2001-2010 Chevrolet and GMC Duramax-equipped trucks with a 3.5" axle diameter. This isn't just a performance upgrade—it's a smart solution for any diesel truck owner, from stock setups to serious street builds. Why You Need the HSP 77" Bolt-On Traction Bar Kit Diesel trucks are notoriously front-heavy, with plow hardware, heavy engines, and light rear ends. Combined with high torque output, this often leads to wheel hop—a violent up-and-down tire bounce that causes loss of traction and potential damage to driveshafts, axles, yokes, and u-joints. Whether you're towing, racing, or daily driving, traction matters. If you're spinning, you're not winning! What Makes HSP Traction Bars Different? These traction bars tie your axle directly to the frame, planting your suspension and dramatically reducing axle wrap. That means better torque transfer and improved power-to-ground efficiency. Built with top-tier components, these are not flimsy, noisy kits—HSP bars are engineered for performance, longevity, and a perfect fit. With proven use on drag, street, and work trucks, this is a trusted, bolt-on upgrade youll feel immediately. What's Included 1x 77" Bolt On Traction Bar (HSP-IN-678-3) 1x 77" Bolt On Traction Bar (HSP-IN-678-3) 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) Vehicle 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
Note:
The 8th character indicates the engine code; the 10th character indicates the model year. Special Note These 77" bars are designed for Crew Cab and Extended Cab trucks with 8-foot beds. If you're unsure about your configuration, please contact us before ordering to confirm the correct size. Overview Complete bolt-on installation for most applications Powder coating options including custom colors Heavy-duty rear brackets for maximum strength Quick, tool-free installation—no welding required Eliminates wheel hop and improves traction under load Multiple lengths available to ensure perfect fit Our Warranty HSP NO BS LIMITED LIFETIME WARRANTY At HSP, we believe in our products and stand behind every part we manufacture. Weve always gone above and beyond for our customers—and now weve made it official. Our “No BS” Lifetime Warranty is simple, transparent, and designed to protect your investment. Click the link below to learn more: For more information about our Lifetime No BS Warranty, click HERE.
HSP 77" Bolt-On Traction Bars 3.5in Axle Diameter for 2001-2010 Chevrolet / GMC Duramax LB7 / LLY / LBZ / LMM The 035-3-HSP traction bars are designed for 2001-2010 Chevrolet and GMC Duramax-equipped trucks with a 3.5" axle diameter. This isn't just a performance upgrade—it's a smart solution for any diesel truck owner, from stock setups to serious street builds. Why You Need the HSP 77" Bolt-On Traction Bar Kit Diesel trucks are notoriously front-heavy, with plow hardware, heavy engines, and light rear ends. Combined with high torque output, this often leads to wheel hop—a violent up-and-down tire bounce that causes loss of traction and potential damage to driveshafts, axles, yokes, and u-joints. Whether you're towing, racing, or daily driving, traction matters. If you're spinning, you're not winning! What Makes HSP Traction Bars Different? These traction bars tie your axle directly to the frame, planting your suspension and dramatically reducing axle wrap. That means better torque transfer and improved power-to-ground efficiency. Built with top-tier components, these are not flimsy, noisy kits—HSP bars are engineered for performance, longevity, and a perfect fit. With proven use on drag, street, and work trucks, this is a trusted, bolt-on upgrade youll feel immediately. What's Included 1x 77" Bolt On Traction Bar (HSP-IN-678-3) 1x 77" Bolt On Traction Bar (HSP-IN-678-3) 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) Vehicle 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
Note:
The 8th character indicates the engine code; the 10th character indicates the model year. Special Note These 77" bars are designed for Crew Cab and Extended Cab trucks with 8-foot beds. If you're unsure about your configuration, please contact us before ordering to confirm the correct size. Overview Complete bolt-on installation for most applications Powder coating options including custom colors Heavy-duty rear brackets for maximum strength Quick, tool-free installation—no welding required Eliminates wheel hop and improves traction under load Multiple lengths available to ensure perfect fit Our Warranty HSP NO BS LIMITED LIFETIME WARRANTY At HSP, we believe in our products and stand behind every part we manufacture. Weve always gone above and beyond for our customers—and now weve made it official. Our “No BS” Lifetime Warranty is simple, transparent, and designed to protect your investment. Click the link below to learn more: For more information about our Lifetime No BS Warranty, click HERE.
HSP offers a limited lifetime warranty to the original purchaser on eligible HSP products. Underhood powder coating has separate two-year limited coverage. Non-HSP brands follow their own manufacturer warranties. Discontinued products and customer/installer damage are excluded. Claim authorization is required; customer pays inbound shipping for ordinary claims.
Return and warranty information is based on what HSP Diesel offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
HSP Diesel warranty policyView complete warrantyProduct conditions
Return and warranty information is based on what HSP Diesel offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
Professional installation is recommended.
- Return eligibility
- HSP states returns must be postmarked within 30 days of purchase, new and unused with original tags and packaging, with an approved RMA. A 15% restocking fee and customer-paid return shipping apply. Special orders, non-HSP dropship products, apparel, used items and custom colors are excluded. Based on what HSP Diesel offers.
- Return window
- Not stated for this product; see supplier terms
- Restocking fee
- See supplier terms; no product-specific fee stated
- Return shipping
- Based on the supplier’s return policy; see terms
- Made to order
- No
- Backorder status
- Not backordered
- Cancellation
- Subject to supplier terms; contact FullSpecDiesel before requesting cancellation
- Warranty provider
- HSP Diesel
- Warranty duration
- Product-specific duration not stated; see supplier terms
- Compatibility
- Listed for specific vehicle configurations
- Legal use
- Street legal
- Processing estimate
- 3–10 business days supplier processing
- Shipping
- Shipping calculated at checkout
- Signature
- No signature requirement
- Supplier
- HSP Diesel
Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.