Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The BD Diesel Allison 1000 transmission kit for 2004.5–2006 Chevy LLY 5‑speed 2WD improves durability with higher clutch counts, revised oil circuits and upgraded regulator components. A BD aluminum deep pan increases oil capacity, while updated trim valves and converter lockup revisions boost line pressure and clutch engagement. The package is intended to extend transmission life under heavier loads.
BD Diesel Transmission - 2004.5-2006 Chev LLY Allison 1000 5-speed 4wd
