Chevrolet Silverado / GMC Sierra. Manual — part 2624
Fig. 114: Reverse Gear, Roller Cages And Spacer
Courtesy of GENERAL MOTORS CORP.
3. Remove the reverse gear, 2 roller cages, and spacer.
GEARS AND SHAFTS CLEANING AND INSPECTION
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Manual Transmission - Tremec 5-Speed (TZ0)
Fig. 115: Inspect Gears For Break-In-Wear - Running-In-Wear
Courtesy of GENERAL MOTORS CORP.
1. Clean all the components in a suitable solvent and air dry.
2. Inspect the gears for break-in-wear - running-in-wear.
Break-in-wear is not considered to be damage because it usually ceases after the running-in-
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Manual Transmission - Tremec 5-Speed (TZ0)
period has expired, without damaging the components. Rough peaks produced during
manufacture are worn away or, to some extent, are rolled into the surface. The surface
structure, grinding and shaving marks, are still visible.
Fig. 116: Inspect Gear Teeth For Scratches
Courtesy of GENERAL MOTORS CORP.
3. Inspect the gear teeth for scratches.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Manual Transmission - Tremec 5-Speed (TZ0)
Scratches are linear indentations on the flank, running in the direction of sliding.
4. If scratches are present, replace the affected components.
Scratches can be caused by the following conditions:
Dust and abrasive particles, including those caused by flank contact, in the lubricating
oil
The sliding action of the flanks
Fig. 117: Inspect Gear Teeth For Abrasive Wear
Courtesy of GENERAL MOTORS CORP.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Manual Transmission - Tremec 5-Speed (TZ0)
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