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I bought another m931a2. The air lines to the Tcase were wrong. I wonder how many trucks are running up and down the roads locked in 6x6....crazy

Thanks very much

My buddy got his truck this morning. The first thing i did was check all the fluids,then the all wheel drive. Sure enough it was locked in awd. Thats 4 out of 6 trucks with the air lines installed wrong and 3 out of 6 locked in awd. I removed his valve that locks awd when in low range and ran...

Heres some pics. The air piston at the top of the t-case is the lock for the shifter. The air/electric solenoid down to the left is the unit that bleeds the air off the shift lock piston. When you push the button on your t-case shifter it makes the solenoid dump the air to the shift lock so you...

The first thing to do is build up FULL AIR PRESSURE then jack the front wheels off the ground just to make sure the front axle isnt locked in. The rest you can deal with as you get a chance. The parts truck destroyed itself... when the t-case blew apart the whole bottom cracked right...

3 out of 5 m939 trucks i bought have the air lines to the t-case routed to the wrong place. 2 out of the 3 were that way right from the military. 2 of them had the air lines fom the low range shifter linkage valve( the valve that engages awd when you engage low range) going to the t-case...