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Guys I was able to get a spin on base cummins part # 3300922S I need the bolt length and proper o ring to install. Any body have the info? Cummins and fleetguard are a bust.

One more thing. Is the long portion of the axle easy to guide back into the differential? It looks like you could beat up your new axle seal....especially if the spline is stubborn to get back in place.

That's great info, pic and videos!! I have zippered boots. Do I seal the zipper? I'm just gonna tear it all down, replace the axle seal and pack the steering joint with new grease. I'm tired of it leaking down the tire onto the ground.

How do you seal the zipper?

It leaks while sitting. Not brake fluid. I'm fairly certain it's the new 80w90 I put in the differential. The rubber boot is shot. That is where it leaks. I had the hub and brake drum off to do the wheel cylinders and pack the bearings last year. How hard is it to get the inner axle seal...

Guys my 813 leaks gear oil at the right front steering joint. Is it time for a boot or am I replacing an inner axle seal?

That's interesting. The seal with the 201737 thermostat is a metal clad lip seal. The parts book shows it going in the housing before the thermostat.

Anyone have an explanation on how the thermostat seal works in the 250 cummins?

I am realizing that my 250 cummins is a pig to start in cold weather. I've never used the intake glow plug and fuel injection system. Anyone out there familiar with the procedure?

Guys these torque arm bushings are hard work ....but far from rocket science. The top four are the hardest to get to break free. I machined a wedge that went from .1875 (3/16") to .4375 (7/16") out of cold rolled plate the slot just cleared the radius in the root of the bushing. I used a...

Do you know which fumoto drain plug fits the 250 cummins?

Excellent idea. What filter base works best? Someone said the baldwin works without any bs. I could make one if I had one to copy.

The oil drain plug is pretty large in diameter any clever tricks for catching the flow of oil without a oil slick?

Guys how much engine oil do you need when you do an oil change on the 250 cummins with a new filter? I've read 26 quarts. Is this a correct number?

These inserts had been in since the truck was painted last as the paint matched the truck. They were a little tough as expected to get to make the first move. They broke free with the normal "bang" and came right out. I can't imagine a 50 ton press being needed. You could press out the center...

Yeah there is absolutely no access to hit the inside of the frame in that area. The torque arm completely covers that area. You also can't hit the end of the insert on the outside because the spring plate Is in the way. My wedge idea and driving rod worked like a champ especially for a first...

I just removed and replaced my upper torque rod inserts on my m813. The center two were tough to budge. I ended up milling a wedge out of 3/8" plate. The small end was around .187 . The slot was 2.250 wide and 2.5 deep. I ended up driving the wedge with a piece of 1.25 cold roll round bar. I...

2-1/4"

Nice pics. What fluid is best for the 800 series 5 tons?

Hello gentlemen, I'm about to install an oil cooler on my m813 nhc Cummins. Is there anything I need to know to get it back together correctly?