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Everything posted by 67RModel
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Could you get a FL model with a 1693 cat or 3406A? Or maybe a KT Cummins?
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Mack made a slew of different T3XX series transmissions. A lot of them have creeper low hole and reverse gears. Generally speaking mack transmissions are generally geared slightly lower than their Eaton equivalent. it’s been covered a bunch of times on here but switching to an Eaton transmission is a pretty involved process. It’s not just a simple as pulling one and replacing it with the other.
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An Eaton 13 speed would be "worse" ratio wise compared to the T310 for woods work. See The ratios for the first 5 gears listed below for each transmission. T310 1st: 13.81 2nd: 10.05 3rd: 7.18 4th: 5.17 5th: 3.75 Eaton 13: Low: 12.31 1st: 8.64 2nd: 6.11 3rd: 4.43 4th: 3.23 An Eaton 13 speed is more of a road transmission better suited for maintianing highway speeds in hilly terrain hence why you can split all the high range gears. You need a vocational transmission with several low hole gears.
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What are the specs on it? If my math is correct its a 1972? Looks like it may have been a road tractor first in life. Really short WB. I love the weed burner exhaust. Edit: I see the title says 1971. I clearly can't read titles.
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I assume that is had painted lettering? If so who did you have do it?
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All Osama Bin Laden's brothers went to work for Biden. Bin Lying, Bin Sleepin, and Bin Stealing
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Here is a real brain twister: what is worse? Biden going abroad and flapping his gums or Kamala going abroad and flapping her gums? Maybe is not a brain twister I. I don't know. It seems they are both pretty weak at conveying a coherent message just in different ways.
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In a situation where you will loose road speed much faster than your engine RPMs will fall shifting on the jake can be beneficial if you know what your doing. Is it necessary? Maybe, maybe not. Plus whos to say the automated manuals aren't designed to do this anyway? There is a reason they never miss a gear heavily loaded on a steep grade starting from a dead stop. I think where its gets ridiculous is when you see guys empty on level ground shifting and splitting every gear on the jake. Maybe they just like to hear that noise from their straight pipes.
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It is lost on me why this continues to happen on a regular basis. Not even a year ago in May of 2022, 17 cars of a Norfolk Southern train derailed in the Harmar Twp neighborhood of Pittsburgh spilling petroleum distillates into the Allegheny River. Before that in 2018 a Norfolk Southern train derailed in the Station Square area of Pittsburgh spilling 8 train cars full of Listerine mouthwash. I mean maybe the consequences for having a train derail are not great enough? I can almost guarantee the root cause of most of these derailments are some level of negligence. Although probably not criminal, just that the standards, regulations, and penalties are not at all high enough. How is it that airplanes basically never fall out of the sky even with a complete engine failure or other major defect arises midflight? There is already surveillance video of this train that derailed in Ohio that shows an axle assembly completely on fire 15 miles before it derailed. How is that possible? These freight trains and rail operators seem to have skirted major scrutiny for far too long. If your going to be carrying tens of thousands of gallons of hazardous chemicals and toxins through peoples backyards and across potable drinking watersheds then you better have a much more robust set of standards and penalties in place. The minimum fine for something like this should be $50,000,000 and say $5,000,000/day until the site and affected area is completely cleaned up and remediated to pre crash status. If these rail operators had something to loose maybe they wouldn't allow their trains to derail. I think where the government really has failed its citizens is not being proactive enough and allowing this kind of disaster to happen in the first place. Biden, Trump, Obama, Bush, Clinton, Bush, Reagan, Carter, Ford, and Nixon administrations and congresses.....all the way back to the Conrail days when the federal government bailed these clowns out from Bankruptcy, made them profitable, and then turned them back into private sector hands again.
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New Jersey says no more new gas burners after 2035. I wonder if that means commercial vehicles too? The memo linked below from the governor's office is not clear on that point. It just says "cars". It goes on to say 100% of all electricity sold in the sate to come from clean sources by 2035. @tjc transport whats the word over there in Jersey on this? https://nj.gov/governor/news/news/562023/approved/20230215b.shtml
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The pickup location was Los Angeles.....I wonder if that MH is clean idle certified? 🤣
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Trailer for your B model Mack
67RModel replied to Frank Y's topic in Antique and Classic Mack Trucks General Discussion
Look on marketplace in the southern states like Tennessee, Georgia, Mississippi, and Alabama (if your willing to travel). Old, single axle lowboys are very common down there for like $2500. It must have been a regional thing because I never see any up here unless they are hooked to an antique. -
Pretty much everything except for the "killer dowel pin". Its a real thing. A place I used to work at a long time ago had the exact same setup truck. 12V 5.9 with a Spicer 7 speed. That stupid dowel pin wiped out the timing gears and the front of the engine. It had less than 50k miles on it. I think it was still worth enough to them they put a reman engine in the truck. I would pull your timing cover and see if yours has been addressed already and if not fix it. Its a very easy job and like a $50 part.
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I bid on it up to $2250 but I had a feeling it was going to go for a lot more than that. I watched this action on and off all day and the amount of money these old original porcelain signs bring is insane. $15,000 - $20,000 is not uncommon for some of the oil and tobacco signs. They don't necessarily have to be large. This one would have been really nice to have and looked excellent on my shop wall, but I'm in some ways happy I didn't buy it as I can honestly think of much better ways to spend that kind of scratch.
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Why not try dealer?
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355-380 horsepower increase
67RModel replied to Bluebulldog's topic in Modern Mack Truck General Discussion
I get it. That is why I said a very easy to see example. In this scenario it could be 800miles, 8,000 miles or maybe 80,000 miles. We will obviously never know but a difference in life span is theoretically there. I only bring it up because the OP questioned it. If Vegas was taking bets on the maximum lifespan (miles travelled) of the 355/380 versus a 427 or 460 under the exact same loading conditions the odds would be in favor of the 355/380 because there is a scientific basis as such. -
355-380 horsepower increase
67RModel replied to Bluebulldog's topic in Modern Mack Truck General Discussion
From a physics/engineering standpoint this is untrue. If you have two identical engines aside from the amount of fuel/air delivery to each, operating under the same load conditions, then the engine with the greater power density will fail sooner. A very easy to see example of this is a top fuel dragster engine. Around 500 cubic inches making about 10,000hp. The same exact engine making a modest 500 hp would theoretically last much longer subjected to the same load being applied to it. Obviously at the expense of much more time to do the same work. An over the road truck engine is no different but much harder to grasp the longevity difference between the two. -
I knew of a guy that got in an argument with a parts store guy about parts for a GMC with a 305 V6….the parts guy swore up and down no such animal existed and that the only 305 in a GMC truck was a V8….this was like 15 years ago and you would have thought the guy behind the counter would have known better as he was I guess in his fifties at the time
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Did she at least sell you the battery?????
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Trailer for your B model Mack
67RModel replied to Frank Y's topic in Antique and Classic Mack Trucks General Discussion
Yea I saw that yesterday and almost posted the same thing but refrained. The owner is full if chit. Once you deduct for all the wood and tires you are probably looking at 7,000-8,000 pounds of iron. Unless you cut it up yourself into small pieces yea you are going to get $5/100 for it. The thing is worth $400 - $500 in scrap. -
The other thing to note with push connect fittings is they might not seal in vacuum systems. Some shop installed one on the fuel suction line of a series 60 Detroit I once had. After a few miles it developed an air leak and would not stay running at idle. Replaced the push connect fitting with a compression style fitting and the problem was solved. Did I get a bad one or are they just not meant for vacuum? I don't know the answer to either question. I stay away from them if I can. As far as brands I think Parker is one of the biggest name in brass DOT fittings both compression and push connect.
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Coca Cola LJ Mack colors
67RModel replied to 1961H67's topic in Antique and Classic Mack Trucks General Discussion
Is there a part number on it. They are usually very faint and this case covered in thick paint. You may have to take it off and remove the paint see if there is a number on it. If there is you can probably figure it out that way. From your description it sounds like a relay valve to actuate something else when the brakes are applied. Since its connected to tank air at the top. The signal air from the brake valve probably opens a port inside the valve and allows the tank air (top line) to send air to something else via the port that is plugged (right port). Once the brake application is relapsed the air is exhausted through the bottom. A lot of relay valves are also regulated so the air sent to whatever it is controlling does not get full tank pressure.....just depends on what its controlling. -
Go to any of the online vendors that sell only heavy duty truck parts. There are many. AnythingTruck.com is one. McMaster Carr has a decent selection of DOT fittings and tubing. Dealership or independent heavy duty truck shop parts counter is an option too. Personally I would stay away from the push to connect style fittings if possible.
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How would you like to be the pilot that shot it down. What a story to be able to tell your grandkids. "I was the one that ended the great Chinese spy balloon scare of 2023!"
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