THE M939 HAS MWO what is that?

[SyrionDeathvow]

I was looking into locking hubs for a 5 ton and someone said it will only work with the air actuated m939 but you could upgrade the m39 and m809 to mwo and it would work.

 

[simp5782]

Locking hubs for the 5 ton cost more than the M39 and 809 series trucks in some cases. It is just a dash operated air TR1 air switch that sends air to the sprag rather than the transmission poppet valve doing it.

PATracy does a poor mans lockout by machining out the splines on a stock hub flange. and you just store your splined flanges for use when needed.

 

[SyrionDeathvow]

Will an mrap front axle bolt up under a m39?

 

[simp5782]

It won't be the same gear ratio as the 6.44s