ALLISON 1000 & 2000 PRODUCT FAMILIES
C5 CLUTCH PACK COMPONENTS
B. C5 Piston
C. C5 Backplate
D. C5 Return Spring Assembly
A. C5 Clutch Pack
A. Inspect friction plate contact
NOTE: Anti-freeze (glycol) and/or
faces for excessive wear, embedded metal particles, cracking and distortion. Inspect the plate splines for burrs, cracks and damaged spline teeth. Replace the plate if spline damage cannot be repaired using a soft stone or crocus cloth. Minimum allowable friction plate thickness is 2.375mm (0.0935 inch). Minimum allowable oil groove depth is 0.20mm (0.008 inch). Maximum allowable coning is 0.225mm (0.009 inch).
water will adversely affect the bonding agent between the friction material and steel core. Replace any friction plates which have been exposed to water and/or glycol. Friction material which is loose or flaking indicates that the plates have been exposed to glycol and/or water. Reference SIL 18-TR-98, Rev. A for details.
NOTE: Battered and worn spline
teeth may be an indicator of driveline issues. Replace the clutch plates and check the driveline. 52
ALLISON
TRANSMISSION
2005 General Motors Corporation.
Inspect reaction plate contact surfaces for chips, cracks, grooves, scoring and signs of overheating. Inspect reaction plate tangs for chips, cracks and signs of battering. Replace the plate if damage cannot
be repaired using a soft stone or crocus cloth. Replace the plate if any tangs are broken, bent or otherwise distorted. Maximum allowable coning is 0.295mm (0.0116 inch). Minimum allowable plate thickness is indicated in the chart below. Part Number
Minimum Thickness
ID Number
29536481
1.935 mm (0.0762 inch)
1
29536482
2.435 mm (0.0959 inch)
2
29536483
2.935 mm (0.1156 inch)
3
(continued) TECHNICIANS’
GUIDE
