FLEECE FPE-TUFSHAFTS GM FRONT TUFSHAFTS 01–10 GM 2500–3500 W/ 9.25" AAM FRONT AXLE

Stop front axle failures before they stop you. The FLEECE FPE-TUFSHAFTS are Hy-Tuf steel replacement shafts engineered for 2001–2010 GM 2500/3500 4x4 trucks with the 9.25" AAM front axle. They eliminate the weak split passenger shaft and short driver shaft that are prone to breakage under towing, big tires, and added power—delivering the durability your Duramax deserves. Fleece TufShafts GM 9.25 AAM, Hy-Tuf front axle shafts, LB7 LLY LBZ LMM Duramax front axle upgrade, Silverado Sierra 2500 3500 4x4, CPP Diesel Fleece Performance

Why TufShafts

• Hy-Tuf construction for exceptional torsional strength and impact resistance
• Direct-fit upgrade replaces the OE split/passenger and short/driver shafts
• Built to handle lifted trucks, larger tires, towing, and hard launches
• Designed and supported by Fleece Performance Engineering

Fitment

Vehicles: 2001–2010 Chevrolet Silverado/GMC Sierra 2500HD & 3500HD (4x4).
Axle: 9.25" AAM front axle (IFS).
Engines: LB7, LLY, LBZ, LMM Duramax applications (and other 01–10 2500/3500 4x4 trims using the 9.25" AAM).

Cross-Reference / Related Fleece Items (CPP Diesel)

• FLEECE FPE-TIERODSLEEVES – Tie Rod Reinforcement Sleeves (99–10 GM)
• FLEECE FPE-ALILKR – AlliLocker Torque Converter Controller (01–16 Allison)
• FLEECE FPE-HAR-GM-NSBU-0104 – NSBU Pigtails (2001–2004 Allison)
• FLEECE FPE-HAR-GM-NSBU-0405 – NSBU Pigtail (2004.5–2005 Allison)

Hy-Tuf is a high-strength, vacuum-degassed alloy known for superior toughness and fatigue resistance, ideal for front axle shafts in heavy-duty applications.

Yes. TufShafts are a direct replacement for the factory 9.25" AAM axle shafts and retain OE knuckles, hubs, and seals.

Absolutely—TufShafts are designed for daily driving, towing, and off-road use, providing stronger, more reliable shaft assemblies than stock.

California Proposition 65 warning applies; see the Specifications table below for details.

Specifications for FLEECE FPE-TUFSHAFTS