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Transmission Upgrade Parts

Sun Gear Mod for C2 Clutch Hub, with 29537433MOD

$624.65

TransGo Allison Shift Kit, 5 Speed | 2001 - 2005

$324.99

TransGo Allison Jr Shift Kit | 2001 - 2010

$99.72

Valve Body Kit, 2011-2016, 800-1200 HP

$99.99

AlliLocker - Allison Torque Converter Controller | 2001 - 2016

$179.00

Allison Cut Back Valve, Duramax | 2004 - 2010

$79.75

Allison Cut Back Valve, Duramax | 2001 - 2004

$79.99

Allison Transmission Billet Intermediate Shaft, Duramax | 2001 - 2016

$574.43

TCS Allison 1000/2000 Billet Input Shaft | 2017 - 2019

$637.50

Allison Transmission Billet Input Shaft, Duramax | 2001 - 2016

$784.95

Allison Transmission C2 Clutch Hub - Billet Steel, Duramax | 2001 - 2016

$578.43

Allison Transmission Billet Output Shaft, Duramax | 2011 - 2019

$599.92