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The BD Diesel Stage 4 Master Built‑It transmission kit for 2004–2006 Chevy LLY Allison provides the full set of clutch packs, BD‑machined plate assemblies, frictions, deep suction filter and overhaul hardware used in BD's performance builds. The kit groups the parts required for a complete master rebuild to restore or upgrade Allison transmissions with factory‑matched and BD‑specified components.
BD Diesel Built-It Trans Kit 2004-2006 Chevy LLY Allison Stage 4 Master Rebuild Kit
