Repair, Replace or Upgrade Your Allison® Transmission

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PERFORMANCE CLUTCHES & CLUTCH PACKS

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ALLISON® 1000 GM | DURAMAX - Performance Parts

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GPZ - COMPLETE HIGH PERFORMANCE SET W/ C3 TORQUE KIT , C1 - C5 LCT (2010-2016) INCLUDES PRE-MACHINED C3 BACK PLATE TO DROP IN.
GPZ - COMPLETE HIGH PERFORMANCE SET W/ C3 TORQUE KIT , C1 - C5 LCT (2001-2009) INCLUDES PRE-MACHINED C3 BACK PLATE TO DROP IN.
GPZ - COMPLETE HIGH PERFORMANCE PACK , C1 - C5 LCT (2001-2009)
EXXTREME HIGH PERFORMANCE CLUTCH PACK, C1 & C2 GPZ, C3 & C4 NON-SLOTTED FRICTION PLATES (600-2000HP) - FITS ALL MODEL YEARS
C4 - GPZ HIGH PERFORMANCE PACK - LCT (LML / L5P) - 6 FRICTIONS/6 STEELS/1 APPLY PLATENS/6 STEELS/1 APPLY PLATE
C4 EXXTREME PERFORMANCE PACK - NON SLOTTED FRICTIONS - W/C4 LML PISTON & RETURN SPRING - C4 BP NOT INCLUDED
C4 - GPZ HIGH PERFORMANCE PACK - LCT (2001-2009) - 6 FRICTIONS/5 STEELS/1 APPLY PLATE
C3 - GPZ TORQUE KIT - LML (2011-2016) *INCLUDES PRE-MACHINED C3 29535648-425-X BACK PLATE"
C3 - GPZ TORQUE KIT - LCT (2001-2010) *INCLUDES PRE-MACHINED 29535648-386-X C3 BACK PLATE*
C3 - GPZ HIGH PERFORMANCE PACK - LCT (LML / L5P) - 5 FRICTIONS/5 STEELS/1 APPLY PLATE
C3 EXXTREME PERFORMANCE PACK - NON SLOTTED FRICTIONS - W/ C3 LML PISTON & RETURN SPRING & MODIFIED BACK PLATE
C3 - GPZ HIGH PERFORMANCE PACK - LCT (2001-2009) - 5 FRICTIONS/4 STEELS/1 APPLY PLATE/SPACER
C2 - GPZ HIGH PERFORMANCE PACK - LCT (ALL MODEL YEARS)
C2 PERFORMANCE PACK - ALTO G3 CARBONITE - (7 FRICTIONS & 8 STEELS) - ALL MODEL YEARS
C1 - G3 CARBONITE PERFORMANCE CLUTCH PACK - (8 FRICTIONS & 8 STEELS)
C1 - GPZ HIGH PERFORMANCE PACK - LCT (ALL MODEL YEARS) - SINGLE SIDED FRICTIONS
C1 - ALTO HIGH PERFORMANCE PACK - (2001-PRESENT) - SINGLE SIDED FRICTIONS
C3/C4, (NON-SLOTTED) KOLENE REACTION PLATE (.098" THICK), 1000PK
C3/C4, (SLOTTED) KOLENE REACTION PLATE (.098" THICK), 1000PK
C3/C4, (NON-SLOTTED) W/MACHINED LUBE SLOTS, KOLENE REACTION PLATE (.098" THICK), 1000PK

Parts & Solutions for your Performance Duramax Transmission