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8L90 (M5U) Steel Clutch Pack
1 C1 Clutch (Bottom), 2 C2 Clutch 1 C2 (Thick Bottom), 4 C3, 4 C4, 1 C4 (Thick Bottom), 4 C5, 3 C1
STMGM23
STMGM23
8L90 (M5U) Steel Clutch Pack1 C1 Clutch (Bottom), 2 C2 Clutch 1 C2 (Thick Bottom), 4 C3, 4 C4, 1 C4 (Thick Bottom), 4 C5, 3 C1STMGM23Steel Clutch Pack Module

GM

8L90 (M5U) Steel Clutch Pack

2015-ON

Part No.
STMGM23

Raybestos Powertrain GM 8L90 (M5U) Steel Module features a complete unit coverage, flawless-fit steel clutch plates with engineered heat sink and superior surface finish deliver better shift performance and clutch durability, lower noise and shudder, and longer clutch life after rebuild.

Clutch Pack Components

1 C1 Clutch (Bottom), 2 C2 Clutch 1 C2 (Thick Bottom), 4 C3, 4 C4, 1 C4 (Thick Bottom), 4 C5, 3 C1

8L90 C1 (.077") Steel Clutch Plate
28/36
Teeth
5111093
View
8L90 C1 Bottom (.117") Steel Clutch Plate
15/36
Teeth
5111086
View
8L90 C3 Steel Clutch Plate
36
Teeth
5111089
View
8L90 C4 Steel Clutch Plate
26
Teeth
5111090
View
8L90 C2 (.077") Steel Clutch Plate
27/36
Teeth
5111087
View
8L90 C2 Thick Bottom (.148") Steel Clutch Plate
15/36
Teeth
5111088
View
8L90 C4 Thick Bottom Steel Clutch Plate
26
Teeth
5111091
View
8L90 C5 Steel Clutch Plate
8
Teeth
5111092
View
Quality Steel
Part Type:
Steel Clutch Pack Module

Premium Steel:

Raybestos Powertrain steel clutch plates are high quality, application-engineered products at a price you can afford. Manufactured with attention to critical tolerances and quality control, our steel plates meet or exceed OE specifications and have a superior surface finish that supplies a greater apply area and friction clutch life. Raybestos steel plates give better shift performance and clutch durability, lowering noise and shudder, extending the life of your transmission.

WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer and birth defects or other reproductive harm.  For more information go to www.P65Warnings.ca.gov.

Advantages
  • OE thickness for maximum heat sink
  • Superior surface finish for greater apply area and friction clutch life
  • Meets or exceeds OE specifications for flatness and parallelism
  • Flawless fit without binding
  • Better shift performance and clutch durability
  • Made In USA

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