Oh wise and powerful rams gods

[RamSLT]

I ask thy a question with a picture.

What is the module on the front axle?

 

[man n black]

Detect slip?

Ch

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[quietpeen]

interested to know

 

[RamSLT]

I'd like to know too

 

[baulet]

a locker? interested to know too

 

[txbass06]

Looks kinda like the front axle actuator

 

[RamSLT]

Looks kinda like the front axle actuator

What is a axle actuator??

 

[Beefy]

What is a axle actuator??

I believe it comes from the transfer case and engages the 4wd. That's what it looks like to me as well.

 

[jlb]

I believe it comes from the transfer case and engages the 4wd. That's what it looks like to me as well.

You mean like locking/unlocking hubs?

 

[txbass06]

^^ basically yeah

 

[RamSLT]

So it's unlocked in 2HI and 4HI. Then locked in 4LO?

If this is the case is the a way to get it to lock in 4HI and 4LO?

 

[Stroked]

If it's the front axle actuator then it engages the front axle when you put it in 4-HI or 4-LO.

 

[man n black]

^^^^^ wouldn't that be done at transfer case? By this I mean the transfer case engages the front drive shaft which in turn engages the differential and axles...

I'd vote maybe for a front locker but that's not even an option except maybe on the Power Wagon??? Though the placement on the axle is funny for that application

Ch

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[EvanYJ350]

Looks like the same actuator that was on my last three Jeeps. It is operated in synch with the transfer case. When you shift into 4wd, it connects the front axle shafts together. It is the modern day equivalent of locking hubs. It does not lock the front end, the differential is still open.

It's main purpose is to improve mileage and reduce wear by not spinning the front axles and driveshaft when the transfer case is in 2wd.

 

[nim81]

Looks like the same actuator that was on my last three Jeeps. It is operated in synch with the transfer case. When you shift into 4wd, it connects the front axle shafts together. It is the modern day equivalent of locking hubs. It does not lock the front end, the differential is still open.

It's main purpose is to improve mileage and reduce wear by not spinning the front axles and driveshaft when the transfer case is in 2wd.

^^this^^

The front drive shaft spins all the time, and is always engaged at the t-case.


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[dogcar3]

The front drive shaft spins all the time, and is always engaged at the t-case.

I believe that disconnecting of the half shafts (using aforementioned module and and guessing some sort of spline system) prevents the drive shaft from spinning, basically making the spider gears do all the work. The ring gear/diff case are not spinning, just the gears inside. All this replaces manual locking hubs.

Could be tested by jacking the front end and spinning one wheel. The other wheel and the driveshaft should not move when in 2hi.

 

[nim81]

I believe that disconnecting of the half shafts (using aforementioned module and and guessing some sort of spline system) prevents the drive shaft from spinning, basically making the spider gears do all the work. The ring gear/diff case are not spinning, just the gears inside. All this replaces manual locking hubs.

Could be tested by jacking the front end and spinning one wheel. The other wheel and the driveshaft should not move when in 2hi.

I could be wrong but I'm 99% sure it's always engaged and the front shaft it always turning.

When my girlfriend gets home I check and see if it does

Front wheels spin independently when in 2wd, but if you jack up the rear and spin a tire the front driveshaft spins as well

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[dogcar3]

I could be wrong but I'm 99% sure it's always engaged and the front shaft it always turning.

When my girlfriend gets home I check and see if it does

Front wheels spin independently when in 2wd, but if you jack up the rear and spin a tire the front driveshaft spins as well

Interesting. Do you have an electric t-case or manual? Can you spin your front drive shaft with all 4 tires on the ground?

 

[nim81]

Interesting. Do you have an electric t-case or manual? Can you spin your front drive shaft with all 4 tires on the ground?

Electric , and no the front drive shaft will not spin in 2wd with all 4 tires on the ground


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[rambob]

idk about newer rams, but my 2nd gen front driveshaft does not spin in 2wd.
and my accuator is vaccum controled. maybe the newer models have it electronic
the acuator slides a collar that connects the driver and pass axle shafts.