Jizzo17

Thank you. I will update when the project is completed lol

These are the new axles I’m going to put in. The tires are only 2” larger in diameter so I think I should be okay for clearance.

The new tires are only 2” larger in diameter than the old ones so I should be fine as they are after doing some more clearance measurements. I also called a local truck&trailer shop and they have the valve I need as well as all the fittings. Just have to get the new axles in before I go get it all so I can get enough air lines. This is the only photo I could get to upload. Getting an error -200

I realized that I wouldn’t be able to swap to 17.5 after i got off here and started thinking about it more. i shouldn’t have a problem with clearance with the 22.5 because i drug that trailer across a couple ditches and the wheels were spinning freely.

Yea the plan was to swap the 22.5 or 24.5 rims that are on the replacement axles to some 17.5 low pros if I ended up having clearance issues.

I don’t think there is inherently anything wrong with the current axles. But I also haven’t tried pulling it with it loaded. All 8 tires are no good is the issue. I don’t know the tire sizes off the top of my head but they are the same height off the ground to the top of the tire. The newer axles and tires came off an oilfield trailer. I have enough space between the brake hardware to mount the center bracket for the walking beam suspension. Someone before me has already replaced one of the axles. As it’s not the same as the other you’ll be able to see in the picture.

I really don’t know what the previous owner had going on with the brakes. I’m going to cut those axles out and weld new ones in. And will also put new air lines in. This is really just a trailer to haul my trackhoe and dozer between farms. But I want to make it as safe as possible. I just thought it may be easier to buy one of those tanks with the valves attached and mound it inside the frame. I’ve added a pic of what I’m referring to.

Thanks for the help. I have a few places I could call around to for what I’d need. They are just an hour or so away from me. I think I could swap the 30/30 cans to just single 30s. But im not sure which would be easier/more cost effective to do. It may be one of those six in one hand, half a dozen in the other scenarios.

Hello everyone, I have purchased a new to me equipment trailer which only has service brakes on the rear axle. It came with two axles from another trailer with ~100k miles on them. They have the service and park break chambers. I would like to add the r12 and r14 valves to the trailer and plumb them up correctly with the anti compounding valve. The trailer has two air tanks along the frame rails. One is fed from the service side and the other is fed from the supply side. But they both feed into sides of the only r12(?) valve. Which may be normal for that old of a trailer but it has me puzzled on how I can connect it all together. So if anyone has a tank off a trailer that has those valves already mounted I would be interested in purchasing it. Or someplace that might have one. That way I can just bypass the old tanks and lines to just run new ones.

I wasn’t necessarily looking to cheap out. I just didn’t know if there were any other options available.

Got a call back from the radiator shop today and the tubes were clogged to where it was only performing at around 25% cooling capacity. They flushed it out but the scale was so severe there were several holes that appeared. When one was fixed two more would pop up. I was quoted 2300 for a new radiator core but I was hoping someone on here might have another avenue for me to look into.

Okay thanks will do. do you advise taking the entire oil cooler off before I blow air into it?

I just took the forward facing end cap off. It’s the one that bolts to the water pump. The system will pressurize because it will blow the cap off the radiator if you remove it when it’s hot. i don’t have new gaskets but I can cut some out or get my Mack dealer to order some. I bought this truck from a lumber yard with 560k+ miles. I added the plus because the odometer stopped working at some point and there’s no telling when that happened. So I’ve become increasingly familiar with this truck the longer I’ve owned and operated it. But this is my first time with this type of oil cooler.

Here is a picture of the oil cooler tubes. I ran a wire through several of the holes and there is some sludge inside. Could I just blow air through them or can they be replaced?

Thanks. I thought so. Would it be possible for it to be plugged as well?