Products Showing Parts for — {{ }}

No Results Showing Parts for — {{ }}
USD 4515 4515 5475
Part #:

BD-Power Allison Transmission & Converter Package For LLY

2004.5-2005 GM 6.6L LLY Duramax
Part #:
FROM 4515
Additional Processing Time Required

An Email Will Be Sent With Expected Shipping Date After Purchase

Billet Input Shaft
Accept Core Charge * VIEW CORE RETURN POLICY *
Our Recommendations Compatible Products
Scroll to View More


The BD-Power Allison Transmission & Converter Package For LLY for your 2004.5-2005 Chevy 6.6 LLY Duramax for an instant upgrade over your stock transmission. Factory transmissions are prone to failing when trying to handle increased torque levels.  BD-Power Transmission & Converter Packages have a BD rigid aluminum heavy duty transmission pan which adds oil capacity and diminishes case flex, a double lock-up converter with X-Stator technology, and a BD auxiliary full flow filter kit for improved defense.

The BD-Power Transmission & Converter Package includes a heavy-duty clutch with up to 25% more material than stock and a new design valve body that maintains up to 80% higher clutch apply pressures over the stock unit.

  • BD Redesigned Valve Body 
  • Expertly Engineered to Handle Increased Torque Levels
  • Dyno-tested to Make Sure it Functions Properly in All Gears
Warranty Note: 
A new BD-Power Torque Converter must be installed at the time of installation of a BD-Power Transmission. Use of a 3rd party or OE Torque Converter will void transmission warranty.

Product Options

1064722SS 2WD None
1064722BM 2WD Include Input Shaft
1064724SS 4WD None
1064724BM 4WD Include Input Shaft


  • Manufacturer Name BD-Power
  • Shipping Weight 339.00 lb.
  • Shipping Length 23.5 in.
  • Shipping Width 44.5 in.
  • Shipping Height 27.3 in.
  • Fuel Type Diesel
  • Warranty Yes
  • Warranty Info 3 Year / 150,000 Mile
  • Prop 65 WARNING: Cancer & Reproductive Harm -


No Reviews Yet!

Write a Review

Include Your Order Number For a Chance to Win a $100 Gift card

Overall Rating

Your Information

Email Address will not be made public.

Customer Photos

Customer Photos

See what others built Submit your photo

Questions and Answers

Ask XDP a Question about this product (Allow 24-48 hours for reply)
No Questions asked yet!
XDP continues to closely monitor the COVID-19 (Coronavirus) outbreak. As an integral part of the automotive supply chain, at this point all call centers and distribution centers remain fully operational to ensure we keep vital service components flowing to vehicles used in transport of goods and emergency response. To ensure the health of our employees, families, and customers, we have made the following procedural changes:

  • UPDATE: Effective 6/1 Customer Service resumes normal business hours of M-F 8:30 – 9:00pm EST.
  • Effective 3/18 we have decided to temporarily close both of our retail stores in NJ and NV.
  • Our technical sales team remains available Mon-Fri 8:30am-9pm and Saturday 10:30am-7pm EST.
  • All employees have been encouraged to follow the CDC's recommendations at home and in the workplace.
The circumstances of this virus are fast moving, as such, we will continue to update you with any further operational adjustments as needed. As always, we value your business and appreciate your patience as we manage this situation together.