2001-2010 Duramax 77" Bolt-On Traction Bars 3.5" Axle Diameter (035-3-HSP)
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2001-2010 Duramax 77" Bolt-On Traction Bars 3.5" Axle Diameter (035-3-HSP)
Description
Description
Fits
| Year | Make | Model | Trim |
| 2001-2004 | Chevrolet/GMC | Silverado/Sierra 2500 HD/3500 w/ 6.6L Duramax LB7 | Base, LS, LT, SL, SLE, SLT |
| 2004.5-2005 | Chevrolet/GMC | Silverado/Sierra 2500 HD/3500 w/ 6.6L Duramax LLY | WT, LS, LT, WT, SLE, SLT |
| 2006-2007 | Chevrolet/GMC | Silverado/Sierra 2500 HD/3500 Classic w/ 6.6L Duramax LBZ | WT, LS, LT, WT, SL, SLE, SLT |
| 2007.5-2010 | Chevrolet/GMC | Silverado/Sierra 2500 HD/3500 New Body w/ 6.6L Duramax LMM | WT, LT, LTZ, WT, SLE, SLT |
Designed for 2001–2010 Chevrolet and GMC Duramax trucks with a 3.5" axle, these 77" HSP traction bars eliminate violent wheel hop and axle wrap by planting your suspension firmly to the ground. This versatile 77" length is the ideal solution for both 75" and 80" applications, providing a perfect fit for configurations ranging from Crew Cab Short Beds to Long Beds. By tying the axle directly to the frame, you protect critical components like driveshafts and u-joints from the high-torque stress common in LB7, LLY, LBZ, and LMM engines. Whether you are towing, sled pulling, or daily driving, this bolt-on kit ensures maximum power-to-ground efficiency and long-term drivetrain reliability.
Part Number: 035-3-HSP
Features
Features
- Complete bolt-on for most applications
- Powder coating options for an appealing look
- Upgraded complete rear brackets for increased strength
- Simple install and no special tools required
- Multiple length options to fit your application
Includes
Includes
- 1 x 77" Bolt On Traction Bar
- 1 x Front Traction Bar Bracket Left
- 1 x Front Traction Bar Bracket Right
- 1 x Rear Traction Bar Bracket (01-10)
- 1 x Rear Traction Bar Bracket (01-10)
- 4 x 1/8" Aluminum Rivet
- 2 x Small HSP Logo (Flat)
- 4 x Polyurethane Bushings
- 2 x Bushing Inserts (DOM Tubing)
- 8 x 1/2"-13 x 1-1/4" Grade 8 Bolt
- 16 x 1/2" Washer
- 8 x 1/2"-13 Nylon Lock Nut
- 2 x 5/8"- 11 x 3-1/4" Grade 8 Bolt
- 2 x 5/8" - 11 x 3-3/4" Grade 8 Bolt
- 8 x 5/8" Washer
- 4 x 5/8" - 11 Nylon Lock Nut
- 8 x 5/8" Washer
- 2 x Flex Joint (3/4"-16 Thread, Bolt Dia. .625")
- 2 x Jam Nut (3/4"-16)
Notes
Notes
- 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.
Installation
Installation
Questions and Answers
Questions and Answers
Previously asked questions
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I have a 2006 gmc 2500, currently it’s stock suspension and wheels but I plan to add a 6” lift and run 37s, will it work and can I put them on before I lift it?
37's will work with a 6" lift.











