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Sorry for the delays, but ran into several SNAFU's along the way, 1st, was furloughed from the railroad and had to find a second job which I had to work 6 days out of the week 2nd got half way through the video, then if you look on page 156 in TM 9-8025-2, I ran into the problem of end play...

wc63 sorry for taking so long to get back you but here's the easiest way to narrow this down. the first thing is to make sure your linkage is dead on. if its off more than an 1/8" of an inch, then you can run into all sorts of problems. The old saying goes close enough for goverment work does...

You have point Frank, it's possissable to have the reverse gear to break beacuse of the sprag clutch locking up if you are in reverse, as I never gave it that much thought until now. I wish I would of took a picture of the broken reverse gear that I took out of my transmission. If everyone could...

Well pa.rich I read in one of these threads that a truck scrapped would bring around $700 - $800 if worst come to worst. I don't know your mechanical back ground or what capabilities you have as far a access to spare parts, or shop to rebuild one. But the transmission alone if it has low milage...

I added a BRIEF power point presentation on the disassembly of the transmission. This only covers the removal of the components and an BRIEF explanation. This is only to show you where all the components are in relation to one another. The rear reduction case, oil pan and valve cover are...

Ok guys one more bit of information then everyone should be getting the idea of how this thing works. When I explained going from 2nd to 3rd I explained it in the way the transmission distributes its power but in reality it's a little different then the way I explained it. I needed you to get...

Power point Well I started the rebuild of the transmission, for those of you who want to follow along you can, I will be posting a power point presentation now and then on the different sections of the transmission. If you have any problems along the way, don't hesitate to call or email me...

Safety and the manual We are going to start this project very soon and this is a good time to mention a few things about safety and the manuals. 1st safety, The reduction section in this transmission has a pre loaded accumulator. It consists of two springs, the outer spring free length is...

This cutaway is HIGH Reverse With the understanding at every speed (RPM) Reduction section in this transmission, we have a Torque value increase respectfully. So in other words as we reduce speed (RPMS) at each step of this transmission, we gain torque force respectfully. So basically in...

I'm sorry, after rereading my very breif explaintion of HI reverse, I feel I should have presented it in a more professional way so here we go. This cutaway is LOW Reverse Go back and read the reverse section and reduction section on page 2. You have to have a full understanding of how...

videos & Photos of rebuilding transmission Sorry it took me awhile to get this all worked out, I made a video of just the drive line section showing just the drive-line. This video is a working format of the cutaways that I have shown you earlier on this thread. So the easiest way for me to do...

RE: Re: brittle gaskets Well I was fibbing, after a closer look at the seals, Im missing a seal, it looks like its inner clutch reduction piston seal. in this case it's the least used seal, used when you are in low, usually not in low for a long time. These seals with a little cleaning usually...

Re: brittle gaskets Please do, document everything, and take notes, take pictures, and take a video if you can, the more information you can give the better the project. Also it sounds like you know what you are doing and you have a good grasp on it, good job! butch atkins, this is not aimed...

Re: GMC Hydromatic You're right Karl, The front oil pump as a whole unit is no longer available. I don't know if they still have parts for that. Back in 1999 I also ordered two transmission kits that also had the oil pan gasket and other gaskets dry rotted from age. Since the gaskets were...

transmission seals Well here is all the basic seals you will need to rebuild a transmission. Memphis Equipment will build this kit for you if you tell them its for a complete rebuild. All of these seals and gaskets for $135.00, not a bad price.

Planetary Gears Now since we have covered the basics on the basic operation, I feel I did not cover the planetary Gear Units very well, so we will look a typical Planetary Gear Unit. Even though the basic shape will very slightly, the operation will stay same. Remember Band Tight – Reduction...

reduction section In HIGH RANGE the pistons activate and lock the Planetary Gear Unit as one with the planetary Gears of the Reduction Shaft. Everything is turning at the same rate as the transmission Output Shaft

reduction Reduction Operation Again we are working with a Planetary Gear Unit. The reduction gear section Planetary Gear Unit is more massive in construction than in the transmission side also instead of using a band to hold the drum for reduction, the reduction section uses a Forcing Piston...

You’re Welcome, When I got my M211s, 1 good truck, 3 only good for parts, I knew absolutely nothing about a M211, I didn’t even know how to start it, much less drive it. I got my learning experience through the Fire Department. (All Trial and Error). Working on the fire department truck along...

You know I forgot to show you guys reverse. I’ll add a picture later because I have to play choo-choo but, when you select reverse here is what happens; As you see in Reverse, everything the same for 1st gear except the Rear Planetary unit is in Neutral - Band off and Clutch Off. The Rear...