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Thanks for the reply, I had reviewed the tm and got after it and it slid right off. Now the next drama, have dismantled the sprag and removed the 2 snap rings. From what I read the next step is to press the shaft out. using my new 12ton press it just laughed at me . Apparently I either am...

So made some progress, finally Ready to remove the nose piece I have a concern, with the noise piece tight to the transfer case , the bottom companion flange turns freely As I start to separate the noise piece the companion flange binds. Is it ok to continue to force the noise piece off?

Thanks I did find that and yes looks like I was trying to do it wrong, I will re-secure the upper retaining ring , get the snap ring back on then pull the companion flange. Hopefully will be able to pull the nose off then.

Did find the brake down of the transfer case in the tm. form what I am reading looks like that upper shaft stays in place, I need to pull the companion flange, then the nose piece will have the clearance necessary to slide off. course if you have done the job would love any pointers! thanks

Need some help I cannot get the upper shaft to slide out. Have not found the step by step in the tm for how to take the nose piece off the front to the transfer case , what I have done is remove the front driveshaft disconnect the air lines remove the driveshaft between the transmission...

Thanks ,for the advice . Had decided that the M39 manual was not right for me, but will start studying. as for the grease for the rears, guess I am going to brake down and get those huge sockets. Will have to fugue out the cork plugs.... only Jeep would come up with that.

Thanks was looking at the tm options and did not see M51 as an option, do you know which one I should use for my truck?

Btw, I am sure the tm is there, just got frustrated trying to find the reference I was needing

Speaking of no grease, the fronts were just fine with grease, all of the rears were bathed in axle oil, guess your saying I have multiple problem, first, it’s not supposed to have axle oil out to that bearing on the rear axles and 2nd should be coated with grease.

Well I have finished my brake job on the M51, had a learning curve with it, thought would tell my side of it. To start with I was losing brake fluid, having to watch the level all the time . This is a old system with a single master cylinder. So as soon as the fluid drops out of the master you...

I was able to finish my job the other day. One side the drum slid right off. The other side was hard, no real way to get behind the drum to help it off. Ended up putting a couple of the lug nuts back on and used my mondo puller to ease it off, that actually worked well. Used tie down straps...

Well thanks, figured it was like my light truck, Sure explains why it was not budging

So I have 1969 M51 dump truck, Losing brake fluid and best I can tell I think it’s on the front axle, I know I have axle seals leaking on the front as well. My problem is I can’t get the drum off. Hoping you have a technique So far I have used a 10 ton puller that I had jerry rig using...

Read the other thread, it was helpful, Hit the gearbox a few times, no luck Had some type of red hydraulic oil in the reservoir, drained it and the gearbox oil, replaced both with 10w hydraulic oil from NAPA, no luck next I guess is a pressure test of the pump. Any idea on the pressure value...

Thanks l’ll have a look

I should be able to pull off a pressure test will have to ask a buddy if he has one that will hook up.. that diverted valve is interesting. I’ll try the old Korean War trick and hit the gearbox with a hammer “ gently “ if the valve is sticking that might do the trick. Thanks, I’ll try tomorrow

Have what I think is a 1968 M51 dump truck, The power steering is not working what I can tell you is the reservoir is full I disconnected the supply line that goes from the pump to the steering gearbox, turned the engine over and had fluid come out ( pump is doing something) Sometimes when...