Volvo 850 AWD General Description

850 AWD
General
The 850 AWD with manual transmission M58,
has permanent four-wheel drive with variable
power distribution to the wheels.
Distribution of driving power to the wheels
depends on the condition of the road surface
and driving conditions. Distribution changes to
provide the best possible grip and traction.
The system includes the TRACS system for
the front wheels and a differential lock for the
rear wheels.
Note! Cars with AWD are not designed or built
for off-road driving!
The 850 AWD will initially be available:
* as a station wagon
* with engine B5254T
* with manual transmission M58
* in Europe, Canada and certain Overseas
markets.
For further information about the 850 AWD,
see VCC-049156 (IE not found)
Manual All-wheel drive (AWD), 850 1997-.

Modified transmission (M58)

To provide the car with four-wheel drive,
transmission M56 has been modified (and
given the designation M58) so that power can
be taken off to a bevel gear.

Bevel gear

The power is transferred between the
transmission's differential housing and bevel
gear's tubular shaft via a splined joint. The
bevel gear crown wheel is pressed and
bonded to a tubular shaft. The bevel gear's
crown wheel and pinion have a ratio of 1:3.31.
As the final drive has a ratio of 1:3.31 the ratio
between the front and rear wheels is the
same.
The bevel gear transmits power to the final
drive via a propeller shaft. The propeller shaft
, Service
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