steve s.

Parts are out there, but you will have to figure out what will work on your truck. You are not likely to find anything being sold as a part "for H model Mack" .The H model cab is based on the L model sleeper cab. Some L model parts will fit , including the doors. The drivetrain shares many of its parts with B and other models. The engine and transmission are basically the same as a B model for instance, but the mounts, fan, radiator, shifters and other pieces are different for the H. If your cab and frame are good and you want to put the truck back together, your best bet might be to find another H model for parts. Most H model parts are interchangeable between the 63 and 67. Good luck, and keep us posted.

I agree you have a very cool truck there. Not a common model at all. Before trying the drill and tap method, I would attempt to rotate the shaft back out of the notch. Pulling it straight out won't work because the ball is probably entirely in the notch. But the rotating shaft might just allow the ball to be pushed back into its hole. Worth a try anyway. Drilling and tapping is a good last resort for sure. That top cover is not that rare of a part that you can't find another one. You might not find an aluminum cover, but there are still triplexes around. Good luck.

Welcome, Jim. I spent last winter doing a tandem to single axle conversion of my B61. The job itself is pretty straight forward . Assuming that the tandem you are talking about is a camelback suspension with top load rears, You probably won't be able to reuse them as a single axle. You will need to find a single axle rear, springs and spring hangers. Then you just basically drill for the hangers, mount the rear, make a new driveshaft, and re plumb the brakes. There are some options to consider, like what gear ratio would suit you best, or do you want to install a modern rear and air ride. Also keep in mind that your DOT may complicate matters if you try to reduce the truck's GVW. You don't have to change the GVW, and maybe it doesn't matter if you tag the truck as an antique. Just another consideration. There are plenty of single axle trucks around.

Saw this on Craigslist. Williamsport PA . Looks like it has a lot of potential. https://williamsport.craigslist.org/cto/d/1961-b46-mack/6376171382.html

Thought you all might like to know that Greg took the Working Class Truck award at the Endless Mountains Antique Truck Show this weekend. The 1985 MH 613 looks great. Hard to believe that it's 32 years old.

Very nice truck. Glad to know it has a good home. There was an article in Double Clutch magazine about the Kreitz company a few years ago. I believe there may have been pictures of your truck in that story.

Sunday September 3rd is the date for the 27th annual Endless Mountains Antique Truck Show and Flea Market sponsored by the Northeastern PA Chapter of the Antique Truck Club of America. The Harford Fairgrounds is the location, about halfway between Scranton Pa and Binghamton NY. Easy to get to: exit 217 off I-81, follow the signs. All old trucks are welcome, any size, any condition. No registration fee, only $2.00 to enter as a spectator. Kids under 12 enter free. Breakfast , lunch, and ice cream available . Affordable fun for the whole family! We always have a lot of Macks!

The picture of the "transfer case" does not help me to identify it. A transfer case is used with four wheel drive, which this truck is not. I suspect the transfer case may have been used as a multi speed PTO. Was either of these transmissions used to power the winch? Was there more than one winch, or more than one PTO? Interesting. How is the second transmission driven by the main transmission? A shaft?

The " second strange transmission behind the cab" sounds interesting. Some pictures would be very helpful to know what it might be. It is probably not Mack built, but may be worth saving. At least see if there is an ID tag on it.

Please let us know how you make out with the cab pivot bushings. I could use a set myself. As a last resort, I thought I could make some if I ever get around to it. We use different types of urethane to make molds at work. The rear cab insulators re available from PAI, they are the same ones used on the transmission. Good luck with your project.

In the early days of diesel engines there were many different combustion chamber designs, some good, some not so good. Many engine builders tried many different approaches. Mack did well with the Lanova energy cell, but big improvements were to come. Through a technology sharing agreement with Scania of Sweden, Mack developed the Thermodyne engine which was far more efficient than the Lanova. Mack exchanged bus building information for Scania's combustion chamber knowledge, and the rest is history.

Saw this posted on the ATCA website : http://www.antiquetruckclub.org/forum/?p=post%2F1941-mack-eht-8461138 There must be someone willing to save these old timers.

The truck has always been a tractor, pulling a lowboy for an excavator. Maybe blower isn't the right thing to call them, they do seem to be there to pull from the hoses, rather than blow into them.

A friend recently showed me an early R model he has been familiar for a long time. There are two small electric bowers under the hood, on the firewall. There is one on each side of the engine, which I think is a thermodyne. The passenger side blower has a hose going to the side valve (tappet?) cover, and the driver side blower is connected with a hose to the top of the flywheel housing. The truck's owner says these are original components. What are they for?

I did not go to the auction. I was told the Mack bid up to $8,000, but they did not let it go for that price. The 1951 Brockway 260 went for 5-6 thousand.

The rears have been sold. Thanks for looking.

The big front axle was an option, at least on the X's, but it is unlikely that it was matched with that small 23,000 lb rear axle. Still a very nice truck.

Just saw a notice for an auction next weekend that will include a 1961 B 75 tandem with integral sleeper cab. Here is a link :http://www.auctionzip.com/cgi-bin/auctionview.cgi?lid=2805626&kwd=Brockway&zip=12095&category=0 The Mack has been seen running around Northeastern PA a bit, and looks to have a lot of potential. Some old Brockways in the sale also. Steve

Vlad, I don't have any way of knowing what the upper set of gears are without taking it apart. The Mack TS 442 manual has that information for front mounted single axle carriers, but it does not list that information for top loaded tandem carriers. Maybe someone else has better information. Steve

The rears are out of a concrete mixer truck. With 22" tires and a double overdrive 7220 quad box, it would run about 52 mph. This was a very common ratio for mixers and dump trucks.

For sale: Rear bogie setup from low mileage 1966 B 61S. SWD573 axle housings with CRDP 92 & CRD 93 carriers. 7.49 ratio, 40,000 lb capacity. Includes cross member, trunion, camleback springs. Asking $500.00 or trade for winch . Located in NE PA call Steve at five70-2 two 2-44 seven 8. Not sure why people use the letters and numbers like that.

Eric, Thanks for your support. You always seem to have a photo available. With luck the sun will be shining Sunday for you to take more of your excellent pictures. Jim, we will all be thinking of Eddie Marushock at the show. He was known and respected far and wide, if for no other reason than because he was a truly good guy. We will certainly miss him. Greg we'll be happy to see you and your friends at the show. I couldn't have even spelled soiree five minutes ago. It's good to know people of your caliber. The F model always looks good, wet or dry. Steve

Sunday September 4th is the date for the 26th annual Endless Mountains Antique Truck Show and Flea Market, presented by the Northeastern PA Chapter of the Antique Truck Club of America. The Harford Fairgrounds provide a very nice rural setting for our show, yet we are only 1-1/2 miles from interstate 81 (exit 217) in Susquehanna County PA. A large number of Macks are sure to attend. Any old truck, in any size or condition is welcomed. Even in rainy years, we are fortunate to draw 100 + trucks from PA,NY, NJ, and beyond. In an effort to keep things both affordable and family friendly, we have no registration fee, and spectators pay only $2 to enter. Children under 12 enter free. Breakfast, lunch, and ice cream are available. We'd be happy to have to join us. Call five seven zero- two 2 two -44 seven eight with any questions. Steve

Try calling John Chalmers, Cashtown PA. I recently purchased a tie rod repair kit from him for my FA 512 axle. He may be able to help.

Vlad and Mackdaddy, thanks for the pictures. The yellow truck looks to have a vinyl boot, different than the original canvas, but maybe easier to get sewn up. I have never had a boot in place on my truck, but it looks like the boot mounted from under the floor, with a bolt and wing nut inside the cab to keep it tight. It would have stayed with the transmission when the cab was tilted. That's just my take on it, I could be wrong. It's nice to see three H's in a row! Steve