Dodge ZB 2005 Service Manual page 853

21 - 2 MANUAL TRANSMISSION - T56
MANUAL TRANSMISSION - T56 (Continued)
Fig. 1 IDENTIFICATION LOCATION
1 - IDENTIFICATION PAD
2 - IDENTIFICATION TAG
3 - TAIL HOUSING
Fig. 2 Viper Emblem Location
1 - TAIL HOUSING
2 - VIPER EMBLEM
3 - SHIFTER LEVER
4 - TAIL HOUSING OIL SEAL
OPERATION
NEUTRAL
The input gear supplies input torque from the
engine crankshaft via the clutch assembly. All gears
turn, but the synchronizers are not engaged with the
gear teeth. Because the synchronizers are not
engaged, power is not transferred to the main shaft.
1ST GEAR
The 1-2 synchronizer sleeve shifts rearward to
engage with the clutch teeth on the first speed gear
(Fig. 3). In this condition, the power from the input
gear is transmitted through the cluster gear to the
first speed gear. Power is transferred from the speed
gear, across the synchronizer sleeve to the main
shaft. The gear ratio for first gear is 2.66:1.
2ND GEAR
The 1-2 synchronizer sleeve shifts forward to
engage with the clutch teeth on the second speed
gear (Fig. 3). In this condition, the power from the
input gear will go through the cluster gear, across
the second speed gear, and into the synchronizer
sleeve. The sleeve turns the synchronizer hub and
main shaft. The gear ratio for second gear is 1.78:1.
3RD GEAR
The 3-4 synchronizer sleeve moves rearward to
engage with the clutch teeth of the third speed gear
(Fig. 3). The power is transferred through the input
gear to the cluster gear, across the third speed gear,
to the synchronizer sleeve. The sleeve turns the syn-
chronizer hub and the main shaft. The gear ratio for
third gear is 1.30:1.
4TH GEAR
The 3-4 synchronizer sleeve moves forward to
engage with the clutch teeth of the fourth speed gear
(Fig. 3). Input power is transferred straight through
the input gear into the synchronizer sleeve. The
sleeve turns the synchronizer hub and the main
shaft. The gear ratio for fourth gear is 1.00:1.
5TH GEAR
The 5-6 synchronizer sleeve moves rearward to
engage with the clutch teeth of the fifth speed gear
(Fig. 3). In this condition, the power from the input
gear is transferred through the cluster gear to the
cluster gear extension. Power then flows from the
extension into the synchronizer hub. The hub turns
the synchronizer sleeve, fifth speed gear and the
main shaft. The gear ratio for fifth gear is 0.74:1.
6TH GEAR
The 5-6 synchronizer sleeve moves forward to
engage with the clutch teeth of the sixth speed gear
(Fig. 3). In this condition, the power from the input
gear is transferred through the cluster gear to the
cluster gear extension. Power then flows from the
extension into the synchronizer hub. The hub turns
the synchronizer sleeve, sixth speed gear and the
main shaft. The gear ratio for sixth gear is 0.50:1.
ZB