Transmission- Increase the durability of your drivetrain. BD aluminum HD deep pan, increases oil capacity by 6qt. Re-calibrated accumulator body, Quicker, firmer shifts. Full shift kit with line mod valve to increase pressures. Increased pressure to converter. Added lube circuits to OD planet. Added lube and support to output and intermediate shafts. Drilled and tapped direct and intermediate feeds to prevent leaks at case. Upgraded OD snap ring. Machined center support. Reworked front pump, Fully rollerized geartrain. Clutch Count: COAST CLUTCH 2, Clutch Count: FORWARD 5, Clutch Count: LOW REVERSE 7, Clutch Count: INTERMEDIATE 4, Clutch Count: OVERDRIVE 4. Each transmission is dyno tested. Torque Convertor- Enhanced Stall - Street/Towing applications. Torque multiplying cast aluminum stators. Lower rpm response than the stock converter. More efficient operation. Less heat and better fuel economy. Stamp-forged steel front cover, Furnace-brazed fins. Up to triple the amount of lock-up clutch material. Warranty-> Parts- 36 Month/150,000 miles; Labor- 12 Month/24000 Miles.
Installation InstructionsThis Part Fits:
| Year |
Make |
Model |
Submodel |
| 2001-2004 |
Chevrolet |
Silverado 2500 HD |
Base |
| 2001-2004 |
Chevrolet |
Silverado 2500 HD |
LS |
| 2001-2004 |
Chevrolet |
Silverado 2500 HD |
LT |
| 2004 |
Chevrolet |
Silverado 2500 HD |
WT |
| 2001-2004 |
Chevrolet |
Silverado 3500 |
Base |
| 2001-2004 |
Chevrolet |
Silverado 3500 |
LS |
| 2001-2004 |
Chevrolet |
Silverado 3500 |
LT |
| 2004 |
Chevrolet |
Silverado 3500 |
WT |
| 2002-2004 |
GMC |
Sierra 2500 HD |
Base |
| 2001-2002 |
GMC |
Sierra 2500 HD |
SL |
| 2001-2004 |
GMC |
Sierra 2500 HD |
SLE |
| 2001-2004 |
GMC |
Sierra 2500 HD |
SLT |
| 2003-2004 |
GMC |
Sierra 2500 HD |
WT |
| 2002-2004 |
GMC |
Sierra 3500 |
Base |
| 2001-2002 |
GMC |
Sierra 3500 |
SL |
| 2001-2004 |
GMC |
Sierra 3500 |
SLE |
| 2001-2004 |
GMC |
Sierra 3500 |
SLT |
| 2004 |
GMC |
Sierra 3500 |
WT |
⚠️ California Proposition 65 Warning:
This product may expose you to chemicals known to the State of California
to cause cancer or reproductive harm.
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We reward enthusiasts who trust us with their major projects. Use these tiered codes at checkout to apply instant savings to your order:
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• AH630 — $630 OFF $9000+
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Fitment Guarantee:
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Avoid the headache of the wrong part. If you are unsure about compatibility, contact us first. If we verify the fitment for your vehicle via email and it doesn’t fit, we will handle the exchange at no cost to you.
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Our experts will review your specifications and provide written confirmation for your build.
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Unused items in brand-new, original packaging can be returned within 30 days. While standard refunds incur a 25% restocking fee, we will waive this fee entirely if you choose store credit or an exchange for your next upgrade.
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Exclusions:
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To ensure every customer receives brand-new, untampered components, parts that have been installed, modified, or used are non-returnable. Custom builds, special orders, and wheel/tire packages are considered final sale.
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Contact Form before shipping any items back so we can provide you with an RMA number.
Fitment Guarantee
Fitment guides and tools are helpful—but your car is unique! Some trims and options aren’t always listed, so if you want 100% confidence that a part will fit, our team is happy to double-check for you. We take the guesswork out of your purchase by standing behind our expertise.
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Verify Your Build:
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Our Promise:
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When we confirm a fitment in writing and it doesn’t work for your application, we cover the return shipping and exchange it at no cost to you.
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