Does a 2004.5 48RE torque lock up?
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Does a 2004.5 48RE torque lock up?
Does a 48RE torque lock up in overdrive or only when tow haul is pressed (3rd)? how can u tell if your torque locks up? rpms drop? do u want it to lock up when empty or when towing?
#3
MMMmmmm.... Grits!!
In stock configuration, as best I remember, the tranny doesn't go into lock up in first. It does go into LU part-time in 2nd and 3rd. Unlocking before shifts. It immediately goes into lock up once into OD or 4th. IIRC putting it OD off or 3rd at speeds over 45 it will be in LU. Let off the accellerator pedal and once it drops to a certain RPM it comes out of LU. Thus the run away problem going downhill. LU is best described as like a manual truck. It's a direct drive of the motor to the trans. The RPM's will drop slightly. Third feels like it shifts twice. It is better to be in LU as more pulling power is being sent from the motor to the drivetrain. I'm sure others will chime in and fill in the details I've missed here.
Chris
Chris
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In stock configuration, as best I remember, the tranny doesn't go into lock up in first. It does go into LU part-time in 2nd and 3rd. Unlocking before shifts. It immediately goes into lock up once into OD or 4th. IIRC putting it OD off or 3rd at speeds over 45 it will be in LU. Let off the accellerator pedal and once it drops to a certain RPM it comes out of LU. Thus the run away problem going downhill. LU is best described as like a manual truck. It's a direct drive of the motor to the trans. The RPM's will drop slightly. Third feels like it shifts twice. It is better to be in LU as more pulling power is being sent from the motor to the drivetrain. I'm sure others will chime in and fill in the details I've missed here.
Chris
Chris
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