Rear axle disconect

[Jersey4x4]

Since I have been running the M816 almost daily and need the 6x6 capability I have the interim drive shaft installed between the 2 read axles but as most of you know this makes it difficult sometimes to turn a corner as there is no differential in the drive line between the rears. I was thinking of building an air actuated lockout/interlock to allow separation on the fly. it could also be manual engagement from a lever or cable. what do you think?

 

[wreckerman893]

With time, money and fab skill anything is possible.

 

[ODdave]

Sounds good. As you know, Post LOTS of pics.

 

[Recovry4x4]

Here is one way!
http://www.remcodsc.com/brochures/DriveshaftCoupling.pdf

 

[m16ty]

Kenny, that's pretty slick but the problem I have with it is there is no protection for the workings of that thing. I couldn't imagine it would last very long in the mud and grime.

It does give some good ideas to build on though.

 

[Recovry4x4]

Yeah, that one is certainly for the RV market but it gives a glimpse into what could be a root start to something pretty cool.

 

[Squirt-Truck]

Biggest issue I see is that it will only allow the rear axle to be disconnected, and that is the one that should remain or poor traction and axle hop becomes a problem due to the rear suspension configuration.

 

[clinto]

http://www.steelsoldiers.com/deuce/38371-deuce-transmission-disaster-pics.html

Pay attention to posts 6 & 7. The info there also applies to 5 tons.

You need to find a way to power the rear axle and have the middle one freewheel.

If there is a lockout hub for 5 tons, you need that and one double ended axle shaft.

 

[Jersey4x4]

I was thinking more along the lines of the WARN 424 kit that they made for ATVs but on a larger scale with an air actuator. Most of the civy trucks have this type of thing and it disconnects the rear drive axle and allows it to follow the first screw in cornering. Obviously you will not be engaging it when you are already stuck and the front axle is spinning.

 

[Squirt-Truck]

Jersey, Well not exactly, the power divider on a commercial twin screw truck when released (open) allows differential action between the rear axles. When locked it powers both rear axles.

 

[Jersey4x4]

Your right, I was thinking theory but not actual. in theory, that is how I want to do it but to divide power to go through the front to the rear I dont think would be possible in these trucks. I was more looking to release the rear axle drive shaft using a disconnect that would allow better turning and then be re engaged and still be driving. The remco unit is a basic unit but being exposed to the elements is no good. Something similar and stronger and air actuated.

Jersey, Well not exactly, the power divider on a commercial twin screw truck when released (open) allows differential action between the rear axles. When locked it powers both rear axles.