MT4222
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How do I add in the two switches in order to convert the m818 from sprag to air actuated? I know I will need 2 switches. One for forward and one for reverse. Thank you
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Try draining the transfer, fill with diesel, run the truck up and down the road bit (DO NOT PUT A LOAD ON THE TRANSFER), drain and see how much gunk comes out, keep flushing till no gunk, refill with oil, see if front engages, if not then we can go from there.Thank you very much. What my problem is that I am unable to go into front whhel drive when I am going forward but the axle will engage when I am in reverse. If anyone has any ideas as to what is malfunctiining please let me know. By the way it is a bobbed m818 on 53's
Florida, you have far more experience than I do, and I totally agree about the piston seals being the problem.I have to disagree the 800 transfer case is not spring loaded. The Deuce is not 5 ton. There is no neutral pisition. The piston will in the last pisition the air was left in.
I have questioned this many times before and dont realy care for this mod. The answer is fix the piston seals and or check you poppet valve for correct working. If those are working then your looking at a new sprag unit.
No disrespect but are you going by what the TM says or have had one apart to change the piston seals. Last time I did two of them the sprag shaft moves free from forward sprag to reverse sprag with no spring pressure?Sorry guys, the 5-ton case for both the M-39 and 800 series is spring loaded to neutral. The towing and recovery manual also refers to this, if the front wheels are towed off the ground release the air to prevent engagement of the front axle. If your transfer does NOT go to neutral with the air OFF then you have a stuck piston or broken spring. Please note that some of the front axle disengagement mods were done WRONG and do not remove the air but try to balance the air pressure and that is a bad thing . (Just ask 73m819. . . )
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