Section 07-03A: Transmission, Manual, M5OD | 1996 F-Series and Bronco (under 8500 lbs. GVW) with 4.9L and 5.0L Engines Workshop Manual |
Powerflow is accomplished with a series of gears and synchronizers as follows:
Neutral
The synchronizer sleeves are centered. The input gear drives the countershaft. Since no gears are locked to the output shaft, it is not driven.
First Gear
The first/second synchronizer is splined to the output shaft. The first/second synchronizer sleeve locks the first gear (1GR) (7100) to the output shaft through the synchronizer. The input gear drives the countershaft. First gear on the countershaft drives the first gear on the output shaft, which is driven in reduction at 3.90:1.
Second Gear
The synchronizer is splined to the output shaft. The synchronizer sleeve locks second gear to the output shaft through the synchronizer. The input gear drives the countershaft. Second gear on the countershaft drives second gear on the output shaft. The output shaft is driven in reduction at 2.25:1.
Third Gear
The third/fourth synchronizer is splined to the output shaft. The synchronizer sleeve locks third gear to the output shaft through the synchronizer. The input gear drives the countershaft. Third gear on the countershaft drives third gear on the output shaft. The output shaft is driven in reduction at 1.50:1.
Fourth Gear
The third/fourth synchronizer is splined to the output shaft. The synchronizer locks the input shaft (7017) to the output shaft. The input shaft and output shaft turn at the same speed (1:1 ratio).
Fifth Gear (Overdrive)
The fifth gear synchronizer is splined to the countershaft. The synchronizer sleeve locks fifth gear to the countershaft. The input gear drives the countershaft. Fifth gear on the countershaft drives fifth gear which is splined to the output shaft. The output shaft is overdriven at a ratio of 0.80:1.
Reverse Gear
A reverse idler gear produces rotation in the opposite direction of output shaft rotation. The fifth/reverse synchronizer is splined to the countershaft. The synchronizer sleeve locks reverse gear to the countershaft. The input gear drives the countershaft. The countershaft reverse gear drives the reverse idler gear. The reverse idler gear drives reverse gear (which is splined to the output shaft) at a reduction ratio of 3.39:1.