What is inter-axle differential lock?

The inter-axle differential lock is used on vehicles with tandem rear axles. Differential lock is controlled by a lever or push-pull control valve on the instrument panel. This feature can be in only two positions—lock or unlock— as indicated.

How fast can you drive with inter-axle lock?

There is no speed or handling restrictions for vehicle operation with the IAD lock engaged, but for best axle performance and minimum tire wear ALWAYS unlock the IAD lock when favorable road conditions return. When the DCDL is locked, the vehicle must be operated at 25 mph or less.

When should I use diff lock on my truck?

How to Use Your Diff Lock When Driving. First, a diff lock should not be engaged for on road driving, unless weather conditions such as snow or ice mean that extra traction is required. Use your locking differential when you want to go off road, for driving on difficult terrain, such as dirt, gravel, mud or snow.

How do you unlock a differential lock?

Disengage (Unlock) To disengage the wheel differential lock, flip the control lever to the “Unlock” position. 2. Let up on the accelerator pedal momentarily to relieve torque and allow the sliding clutch to disengage.

What does axle lock mean?

This vehicle is equipped with electronically locking front and rear differentials. These differentials, when engaged, mechanically lock together the axle shafts forcing the wheels to spin at an equal rate.

How do you unlock a diff lock?

1. To disengage the wheel differential lock, flip the control lever to the “Unlock” position. 2. Let up on the accelerator pedal momentarily to relieve torque and allow the sliding clutch to disengage.

What is the purpose of differential lock?

Locking differentials (generically referred to as “lockers”) can lock the axles together to provide 100% of available torque to the wheel with traction. During turns, a locking differential operates like an open differential – the wheels can rotate at different speeds.

Can you drive with inter axle differential lock?

Is there ever a time when you should use the Interaxle Differential Lock system over the road? Yes. If the roads are very slippery and you are traveling at significantly reduced speeds, but make sure that any time you turn on your Interaxle Differential Lock you are stopped.

Do you use diff lock in sand?

An engaged rear differential lock will ensure there’s no loss of forward momentum… However, in soft sand they can cause your 4WD to dig into the sand and become bogged; at the same time in very deep, soft sand they can help you to keep the power poured on and grunt your way out.

What happens if you drive a truck with diff lock on?

By engaging the diff-lock, whether it be factory standard or fitted after-market, the diff is “locked” and begins to drive both wheels evenly. This allows not only the wheel without traction to continue to spin in the hope of gaining traction, but more importantly, begins to drive the well-grounded wheel.

How do I manually turn off diff lock?

Have you tried that? unplug the vacuum hose from the diff. Drive in reverse making left right left right turns. That should disengage it.

What does inter axle differential lock mean?


  • Coachmen.
  • Jayco.
  • Coleman.
  • Keystone.
  • Winnebago.
  • Fleetwood.
  • When to lock rear differential?

    Whining/Grinding Noises. If you notice a whining sound coming from your rear-diff (especially while turning),there’s a good chance you’re low on differential fluid.

  • Differential Fluid Leak. If the diff fluid is leaking,there’s likely a worn seal that needs to be replaced.
  • Tire Damage.
  • Vibrations While Accelerating.
  • Handling Issues While Turning.
  • What is the purpose of inter-axle differential?

    The inter-axle differential assembly provides speed differentiation between driving input to a forward differential gear assembly for the forward drive axle and driving input to a rear differential gear assembly for the rear drive axle as needed.

    What is a driver controlled differential lock?

    A driver-controlled differential lock control system allows vehicles with automatic, electronic and single range manual transmissions and air pressure actuated differential locking devices to have the vehicle differential thereof locked on only at low speeds.