This page is about Unimog 406.

Read more about Unimog 416 Gearboxes, Shift Patterns and Maximum Speeds:
Unimog 416 Gearboxes, Shift Patterns and Maximum Speeds
 

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6 SPEED

 

 

 

Unimog 406
6 Speed (Normal or torque convertor)
6.527 Standard Axle Ratio

AXLE RATIOS
Differentials: 3.143
Hub reduction gears: 2.077
Total axle ratio: 6.527

GEARBOX: UG2/27
VERSION : 6 speed (Normal or torque convertor)
6 Forward
2 Reverse

GEARBOX RATIOS:
1st: 14.53:1
2nd: 8.66:1
3rd: 4.50:1
4th: 2.69:1
5th: 1.65:1
6th: 1.00:1

Max. speed (km) @ 2550 rpm

Main gears	1	2	3	4	5	6	R-1	R-2
10.5-20 Tires	4.56	8.26	14.71	26.64	40.24	66.28	5.70	10.32
12.5-20 Tires	4.83	8.76	15.56	28.24	42.65	70.26	6.04	10.94

 

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20 SPEED CASCADE

 

 

 

Unimog 406
20 Speed (6 Speed + Cascade box)
6.527 Standard Axle Ratio

 

AXLE RATIOS
Differentials: 3.143
Hub reduction gears: 2.077
Total axle ratio: 6.527

GEARBOX: UG2/27
GEARBOX: 6 Speed + Cascade box (Total 20 forward - Total 8 reverse)
Main gears: 6 forward - 2 reverse
Intermediate gears: 6 forward - 2 reverse
Crawler gears: 4 forward - 2 reverse
Super-crawler gears: 4 forward - 2  reverse

GEARBOX RATIOS:

Main Gears
1st: 14.53:1
2nd: 8.66:1
3rd: 4.50:1
4th: 2.69:1
5th: 1.65:1
6th: 1.00:1

Intermediate
1st: 18.45:1
2nd: 10.99:1
3rd: 5.71:1
4th:3.41:1
5th: 2.09:1
6th: 1.27:1

Crawler
1st: 67.85:1
2nd: 40.44:1
3rd: 21.00:1
4th: 12.56:1
5th: Blocked
6th: Blocked

Super crawler
1st: 623.05:1
2nd: 371.34:1
3rd: 192.95:1
4th: 115.34:1
5th: Blocked
6th: Blocked

Max. speed (km) @ 2550 rpm

Main gears	1	2	3	4	5	6	R-1	R-2
10.5-20 Tires	4.56	8.26	14.71	26.64	40.24	66.28	5.70	10.32
12.5-20 Tires	4.83	8.76	15.56	28.24	42.65	70.26	6.04	10.94

Max. speed (km) @ 2550 rpm

Intermediate gears	1	2	3	4	5	6	R-1	R-2
10.5-20 Tires	3.62	6.55	11.67	21.12	31.91	52.56	4.52	8.18
12.5-20 Tires	3.84	6.94	12.37	22.39	33.82	55.71	4.79	8.67

Max. speed (km) @ 2550 rpm

Crawler gears	1	2	3	4	5	6	R-1	R-2
10.5-20 Tires	0.98	1.77	3.15	5.71	----	----	1.22	2.21
12.5-20 Tires	1.04	1.88	3.34	6.05	----	----	1.29	2.34

Max. speed (km) @ 2550 rpm

Super-crawler gears	1	2	3	4	5	6	R-1	R-2
10.5-20 Tires	0.106	0.193	0.343	0.621	----	----	0.133	0.241
12.5-20 Tires	0.112	0.205	0.364	0.658	----	----	0.141	0.268

 

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2x4 Speed

 

 

 

Unimog 406
2 x 4 gear (Normal or torque convertor)
Standard 6.527 Axle Ratio

AXLE RATIOS
Differentials: 3.143
Hub reduction gears: 2.077
Total axle ratio: 6.527

GEARBOX: UG2/27
VERSION : 2 x 4 Speed (Normal or torque convertor) - (Total 8 forward - 4 reverse)
High-range gears: 4 forward
Low-range gears: 4 forward - 4 reverse

GEARBOX RATIOS

Low Range
1st: 14.53:1
2nd: 8.66:1
3rd: 5.31:1
4th: 3.23:1

High Range
1st: 4.50:1
2nd: 2.69:1
3rd: 1.65:1
4th: 1.00:1

Max. speed (km) @ 2550 rpm

High-range gears	1	2	3	4
10.5-20 Tires	14.71	26.64	40.24	66.28
12.5-20 Tires	15.59	28.24	42.62	70.26

Max. speed (km) @ 2550 rpm

Low-range gears	1	2	3	4	R-1	R-2	R-3	R-4
10.5-20 Tires	4.56	8.26	12.47	20.54	5.70	10.32	15.59	25.68
12.5-20 Tires	4.83	8.76	13.22	21.77	6.04	10.94	16.53	27.22