axle interlock

So, what is happening on a set of rockwell 20-145 rears when you have the rear wheels jacked up off the ground and the front is still on the ground. put it in gear and let off the clutch? front drives wont turn unless you lock in the power divider......

as cody said, your statment is only true depending on what rears your talking about.not all rears are the same. theres more than a few different configuerations......

 

you may be getting confused. theres a interaxle lock and a power divder.some manufacturers may call them by different terms.they are two different things though. some rearends have a 4 way lock system,full lockers. some only have them on the rear axle. all modern tandem axle trucks with two drive axles have a power divder. i'm just wondering if your might have got the two confused. an interaxle lock actually basically locks in the differentail from the spool locking the axle shafts in a common lock. a power divder locks the front and rear axles in sequence as stated previously.

 

Any open differential behaves just like this, you could jack the front and get the same result. As long as none of the four corners are spinning, they all receive the same power. Once there's spinning, the effective ratio of the spinning corner increases resulting in more torque to that corner.

Interaxle and power divider lock are the same. The lock across an axle is normally labeled as "axle lock."



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Hammer166 is correct. A power divider and an inter-axel lock are the same thing. They go front to back, then there are cross-locks or diff locks which go side to side.
Usually you will have to have the power-divider in to engage the cross-locks

 

Certain models of Mack rears do not use an actuated lock, it is designed into the rear to only work when needed. Not sure why the Pete wouldn't have one.

 

By calling it a inter axle lock, one would assume the rear ends actually lock together, again this is only true for certain models, others a power divider would be correct.

 

If the RT carries any similarities to the old SQ series than you would not be able to do that with the rear axle on the ground as it is directly driven all the time.

 

Really? I have Rockwells. SQ100s to be exact, made in 1983. Guess what? Allan is correct. Hang that front drive axle over a ditch and the wheels will spin and you will sit there, until you lock in the power divider.

 

Allan is correct. A power divider acts as an open differential, giving the power to the wheel/axle with the least resistance, until you lock it in.

 

I was speaking about the SQHD's that I mentioned before.