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Home >> Volvo >> 2009 >> XC90 Base, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Transmission - Specifications, Other >> Vehicle Communication Information, Transmission Control Module (TCM) (4T65 AWD; 2003-2006) >> Description Of Parameters >> Parameters, Value >> Gear Ratios
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Gear Ratios

The value indicates the gearbox gear ratio. The control module uses the input and output speeds to calculate the gear ratio. For the correct gear ratio, see the table below

AW50-42 gearbox 
Gear  Gear ratios 
R 3.949
1 3.606
2 2.060
3 1.366
4 0.982
Transmission GM (S80, (-06) non turbo, XC90) 
Gear  Gear ratios 
R 2674
1 3.275
2 1.758
3 1.121
4 0.790
Transmission GM (S80, (-06) turbo) 
Gear  Gear ratios 
R 2.385
1 2.921
2 1.568
3 1.000
4 0.705