The following table shows the gearing ratios and the top speed with the
stock engine and 2 different tire sizes.
The shift column shows the RPMs after an up-shift at the nominal shift point of 4500 RPMs.
Unimog S404 gear ratio table
main
shift
diff-gears
hub-gears
wheel
mph
mph
39 - 11
32 - 15
10.5x20
12.5x20
4500
3.55
2.13
3800
3800
3800
ratio
RPM
ratio
total
ratio
total
RPM
total
116.18
125.60
1st
14.93
52.93
112.93
34
3.70
4.00
2nd
8.23
2481
29.18
62.25
61
6.72
7.26
3rd
4.47
2444
15.85
33.81
112
12.37
13.37
4th
2.47
2487
8.76
18.68
203
22.38
24.20
5th
1.53
2787
5.42
11.57
328
36.13
39.06
6th
1.00
2941
3.55
7.56
502
55.29
59.77
1st Rev
20.12
71.33
152.18
25
2.75
2.97
2nd Rev
11.10
2483
39.35
83.96
45
4.98
5.38
1st
Crawl
46.01
163.13
348.00
11
1.20
1.30
2nd
Crawl
25.34
89.84
191.66
20
2.18
2.36
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