Randy's Transmissions | 2001-2019 GM Allison 1000 Stage 4 Transmission 900HP+

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