M809 Series- Rear and Intermediate axles and what to expect

[Ajax MD]

Hey all,

I want to inspect the rear and intermediate brakes for leaks and check the pad wear. I haven't done it since I've owned the truck. (I did service the steering axle)

I'm reading the -20 TM. I've ordered the little cork gaskets (but I'm also amenable to using a modern sealant).
Page 9-18 is a bit unclear. It states that you must use a hammer and drift to remove the bearing cups (races). If I'm only re-packing the bearings, I do NOT need to remove the races, right?

In terms of consumables, I need the hub flange gaskets, cork plugs, inner grease seal, and outer grease seal. Anything else? On page 9-17, item #13 is listed as a "wiper." Is this a consumable or can I reuse it? I have a fresh brake cylinder on hand in case I find a weeper.

The truck stops very well, and smoothly. I see no signs of gear oil or brake fluid leaking out on any of the intermediate or rear wheels. I have added a tiny bit of brake fluid to top off the master cylinder once in the last 2-3 years. When I serviced the steering axle I was amazed at how clean everything was and the brake shoes were new. The wheel bearings had grease but it was thin and runny so I re-packed them. I suspect that the rear and intermediates will be in similar condition. This is mainly a preventative exercise.

I wish I had a duals jack. That would make life easier.

 

[Mullaney]

Hey all,

I want to inspect the rear and intermediate brakes for leaks and check the pad wear. I haven't done it since I've owned the truck. (I did service the steering axle)

I'm reading the -20 TM. I've ordered the little cork gaskets (but I'm also amenable to using a modern sealant).
Page 9-18 is a bit unclear. It states that you must use a hammer and drift to remove the bearing cups (races). If I'm only re-packing the bearings, I do NOT need to remove the races, right?

In terms of consumables, I need the hub flange gaskets, cork plugs, inner grease seal, and outer grease seal. Anything else? On page 9-17, item #13 is listed as a "wiper." Is this a consumable or can I reuse it? I have a fresh brake cylinder on hand in case I find a weeper.

The truck stops very well, and smoothly. I see no signs of gear oil or brake fluid leaking out on any of the intermediate or rear wheels. I have added a tiny bit of brake fluid to top off the master cylinder once in the last 2-3 years. When I serviced the steering axle I was amazed at how clean everything was and the brake shoes were new. The wheel bearings had grease but it was thin and runny so I re-packed them. I suspect that the rear and intermediates will be in similar condition. This is mainly a preventative exercise.

I wish I had a duals jack. That would make life easier.

.
There is definitely no need to remove the bearing race unless you are replacing the bearings. Reading your list of consumables, I don't see any glaring issues. Seems like that should be everything you need.

 

[G744]

A shot of silicone seal works better than those cork plugs. Just make sure there is no oil in the groove beforehand.

And DON'T use any moly grease, it can react with any gear oil and become mud. Good old long fiber grease is plenty good in those axles.

DG

 

[Big Tom]

Hey all,

I want to inspect the rear and intermediate brakes for leaks and check the pad wear. I haven't done it since I've owned the truck. (I did service the steering axle)

I'm reading the -20 TM. I've ordered the little cork gaskets (but I'm also amenable to using a modern sealant).
Page 9-18 is a bit unclear. It states that you must use a hammer and drift to remove the bearing cups (races). If I'm only re-packing the bearings, I do NOT need to remove the races, right?

In terms of consumables, I need the hub flange gaskets, cork plugs, inner grease seal, and outer grease seal. Anything else? On page 9-17, item #13 is listed as a "wiper." Is this a consumable or can I reuse it? I have a fresh brake cylinder on hand in case I find a weeper.

The truck stops very well, and smoothly. I see no signs of gear oil or brake fluid leaking out on any of the intermediate or rear wheels. I have added a tiny bit of brake fluid to top off the master cylinder once in the last 2-3 years. When I serviced the steering axle I was amazed at how clean everything was and the brake shoes were new. The wheel bearings had grease but it was thin and runny so I re-packed them. I suspect that the rear and intermediates will be in similar condition. This is mainly a preventative exercise.

I wish I had a duals jack. That would make life easier.

Don’t take the races out unless you r useing new bearings, pack bearings with wheel bearing grease , I like to use gasket sealer instead of cork ( the right stuff from Napa )
Ps get here together heading down to Denton nc rally in April if your up for it!!!

 

[Mullaney]

Don’t take the races out unless you r useing new bearings, pack bearings with wheel bearing grease , I like to use gasket sealer instead of cork ( the right stuff from Napa )
Ps get here together heading down to Denton nc rally in April if your up for it!!!

.
Denton in April of 2022 will have a machine gun shoot as well...

Military Vehicle & Collector Show - Denton Farmpark

The Military Vehicle & Gun Collector’s Show will be at the Denton FarmPark! April 26 & 27, 2025 Come see Military Tanks, motorcycles, jeeps, trucks, & amphibious vehicles that will all be on display for visitors! Explore the swap meet and gun show areas, participate in daily events such as...

dentonfarmpark.com

 

[BKubu]

Hey all,

I want to inspect the rear and intermediate brakes for leaks and check the pad wear. I haven't done it since I've owned the truck. (I did service the steering axle)

I'm reading the -20 TM. I've ordered the little cork gaskets (but I'm also amenable to using a modern sealant).
Page 9-18 is a bit unclear. It states that you must use a hammer and drift to remove the bearing cups (races). If I'm only re-packing the bearings, I do NOT need to remove the races, right?

In terms of consumables, I need the hub flange gaskets, cork plugs, inner grease seal, and outer grease seal. Anything else? On page 9-17, item #13 is listed as a "wiper." Is this a consumable or can I reuse it? I have a fresh brake cylinder on hand in case I find a weeper.

The truck stops very well, and smoothly. I see no signs of gear oil or brake fluid leaking out on any of the intermediate or rear wheels. I have added a tiny bit of brake fluid to top off the master cylinder once in the last 2-3 years. When I serviced the steering axle I was amazed at how clean everything was and the brake shoes were new. The wheel bearings had grease but it was thin and runny so I re-packed them. I suspect that the rear and intermediates will be in similar condition. This is mainly a preventative exercise.

I wish I had a duals jack. That would make life easier.

Rich, come borrow (or buy) my duals jack.

 

[Big Tom]

.
Denton in April of 2022 will have a machine gun shoot as well...

View attachment 854692

Military Vehicle & Collector Show - Denton Farmpark

The Military Vehicle & Gun Collector’s Show will be at the Denton FarmPark! April 26 & 27, 2025 Come see Military Tanks, motorcycles, jeeps, trucks, & amphibious vehicles that will all be on display for visitors! Explore the swap meet and gun show areas, participate in daily events such as...

dentonfarmpark.com

Been there last four years great time !!!!

 

[Ajax MD]

Rich, come borrow (or buy) my duals jack.

I forgot you had that thing. The only thing stopping my from buying it is that I have nowhere to store it. I'd pay a fee to borrow it though. Once I have gathered all the bits to do this job, I'll be in touch.

 

[BKubu]

Been there last four years great time !!!!

I responded to the wrong post, so I deleted my response.

 

[BKubu]

I forgot you had that thing. The only thing stopping my from buying it is that I have nowhere to store it. I'd pay a fee to borrow it though. Once I have gathered all the bits to do this job, I'll be in touch.

No fee is necessary. Just let me know when you need it.