Shop with Blessed Performance for Randy's Transmission Allison 1000 Transmission Stage 4 900+HP Max for your 2001-2019 Chevy/GMC Duramax.
Highlights:
Allison 1000 Stage 4 900+ Hp max
- Raybestos or ALTO G3 C-3 C-4 Torque kit custom machined pressure plates
- LML style pistons and return springs
- Raybestos or ALTO G3 C-1, C-2 Torque kit
- Ratio Tek pressure upgrades
- Transgo trim valves
- New torrington bearings
- Randy’s Torque Converter with billet stator custom stalls available
- New OE filters
- Billet input
- Billet c-2 hub
- Billet output
- Billet P-2 planet
- HD Cast Aluminum deep pan
- Flexplates are not included on Allison builds to shops or retail