
⚠️ Fits 2001-2010 GM Duramax 2500HD / 3500HD (2WD & 4WD)
The Twisted Street™ Allison 1000 is designed for stock and mildly tuned Duramax trucks that need dependable performance, smooth operation, and long-term reliability.
This is NOT a basic rebuild.
Every Twisted Street™ Allison is completely disassembled, inspected, upgraded, and recalibrated to address common wear points while restoring the hydraulic integrity and holding power these transmissions require.
Whether you're commuting, towing a trailer on weekends, or putting your truck to work every day, the Twisted Street™ Allison is built to handle the job.
🔥 Smooth, consistent shift quality
🔥 Improved durability over a standard rebuild
🔥 Corrected hydraulic wear issues
🔥 Reliable lockup performance
🔥 Built for daily driving and light to moderate towing
🔥 Designed for long service life
🔥 Supports up to 450 HP
🔥 Supports up to 900 lb-ft Engine Torque
💡 Designed for stock and mildly tuned Duramax diesel applications.
🔥 HD Remanufactured Torque Converter Included
• Restores proper lockup performance
• Furnace brazed for durability
• Matched for drivability and towing
• Twisted Torque™ HD Frictions & Steels
• Complete clutch pack refresh (C1-C5)
• Proper clutch clearances set to specification
• Heat-resistant steels for improved durability
• Pump fully inspected and serviced
• Pressure regulator system inspected
• Wear-related pressure loss corrected
• Hydraulic integrity restored
• Valve body disassembled and inspected
• Recalibrated shift timing
• Improved pressure control
• Helps reduce soft or delayed shift conditions
• Internal electronics inspected and tested
• Internal wiring harness serviced as required
• Pressure control system verified
• Speed sensor system inspected
• Drums, hubs, shafts, and planetary assemblies inspected
• Complete bushing replacement throughout transmission
• Bearing surfaces inspected
• Endplay measured and verified
• Complete overhaul kit installed
• All sealing rings replaced
• All O-rings replaced
• All lip seals replaced
• Internal leakage prevention measures performed
• New internal sump filter
• New external spin-on filter
• Ready for installation
✅ Stock Duramax trucks
✅ Mild tuning
✅ Daily driving
✅ Light to moderate towing
✅ Work truck applications
✅ Long-distance hauling
❌ Aggressive towing with heavy performance tuning
❌ Competition use
❌ Sled pulling
❌ High horsepower builds
👉 Step up to the Twisted Pro™ Allison 1000 for heavy towing and higher horsepower applications.
Questions about fitment, towing, installation, or setup?
📞 833-858-9612
Built Strong. Built Twisted.