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Well little report on my m818. after putting new poppet valves and rebuilding the air cylinder on my Xcase and flushing my Xcase with diesel fuel to free up the clutches, i now have a working 6X6!! A huge thanks goes out to 73m819 for putting up with this kid and his new toy! I ended up selling...

Hey guys. I've been searching on here a few hours and have went through two TM's (which is difficult with very slow Internet) and can't find the complete procedure to drain and refill the coolant on my m818. Can someone point me in the right direction? Thanks again guys. I'm trying to learn how...

I think so. They are the old stop skid tires that I see on all the older trucks. My dad called em "bar tread" if that helps.

Hey guys. My 818 is running 12.00 20's right now. The steers are starting to wear pretty bad, I found some 14.00 20's but can I still run duals with the 14.00's? Or will they rub? Anybody made a spacer for the rear or put in longer wheel studs? I like the taller tire but don't want to sacrifice...

Well after laying under the truck for most of the night I have discovered the poppet valves on the 817 are not working correctly. Removed the floorboard and took the lines loose from the valves that feed the cylinder so I could start the truck and shift between neutral and reverse to see what...

Heres my M818 hauling home my recently found M817

No, of course I expect there to be issues, But since BOTH of mine are having the same problem I was just wondering How frequent this issue was. I probably need to restate my question with a Lil less whining on my part. Has anyone ever replaced the Sprag Clutches in a 5 ton Xcase and if So any...

Hey guys, well after buying a 68 M818 and having no 4x4 (discovered it was leaking air around the cylinder and have since ordered the kit for it) now the 72 m817 I just bought the front axle will not pull either! No air leaks, and the poppet valves are sending air to each side of the cylinder...

Hey guys, Got another truck! 1972 M817 (cab and chassis only) I plan on making this one into a dump truck. it has the Xcase PTO so hopefully I can figure out how to hook that up to a HYD. wet kit. Made me feel pretty proud driving the M818 up to pick her up! So far everything works on the 817...

Anybody know where to get new o rings for the air shift piston in the xcase? And how about new poppet valves?? Thanks:grd:

Ok so the front end will engauge in High and Low and reverse? And what is the air doing? Theres a control box ontop of the transmission that the air feeds into and then 2 lines run out of it to the transfer case. One supplies air to the front side of the cylinder the other the rear, what exactly...

Hi Guys. 23 years old and Brand New to the world of Army trucks so any help is great, I recently bought a 1968 M818 from the local Forestry commission, I don't understand how the 4X4 is supposed to work. the truck has the high/low shifter and it works fine. when I put the transmission into...