The hydraulic motor is connected to provide power input to {HEAD ~ the automatic transmission} for {TAIL ~ forward or reverse driving} of the vehicle  
for
The hydraulic motor is connected to provide power input to { HEAD ~ the automatic transmission } for { TAIL ~ forward or reverse driving } of the vehicle
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH