67RModel

Not to hijack the thread but does anyone remember the Mack Freedom which was the next iteration of the Renault midliner? I think it was actually called a Renault Midlum. I think only sold for 2 or 3 years in the real early 2000s? My guess is when Volvo took over it was dropped....

I know one thing. Getting assassinated by  a sniper while having a conversation about shooters is beyond crazy. Almost like it was planned to happen that way. I hope they can track down and investigate that kid who he was conversing with when he was killed to see if there was collusion with the shooter.

Investigators say they found a 30-06 bolt action Mauser hunting rifle in woods nearby. Hmmm. The photos they put of the suspect ascending the stairs presumably to his shooting position doesn’t show a person packing the rifle they describe. I get he was wearing a backpack but I doubt  even a break down Mauser action hunting rifle would fit in a normal school backpack. I’m skeptical the rifle they found in the woods was used in the shooting. I think it was placed there to throw off investigators and prolong the manhunt. Why take it with you while fleeing the campus and risk being seeing shlepping a 30-06 hunting rifle the whole way only to discard it once you get to cover? Hmmmm.

if he wasn’t packing it in when the photos were taken how did it get up on the roof and who unlocked the doors for him? I doubt the college leaves access to building roofs unlocked for students to go sightseeing. How did he know Charlie would be setting up there and that location would be viable for a shot?

Lots of MS200 manuals and books on Ebay. If I remember correctly the Mack dealer parts system has not supported the midliner trucks for many years. Information on them is all but gone it seems. There is probably a source in France that knows about them and/or can get parts. If you can read/speak the language and do the digging.

Parts are unobtanium for it. Just sayin

4 minutes ago, mechohaulic said:

only to hear from driver "it doesn't shift right . big difference in ratios" well next time steal a different Transmisson .

Yea he should have stollen the correct duplex 🤣. However, he was not wrong. If you look at the ratios between a direct and over gear triplex the difference is not insignificant at all. If your truck had rears geared for one, then swapping to the opposite transmission would readily apparent.

Here is the ratio difference between a direct and overdrive triplex.

10 minutes ago, Mark T said:

If it's a double over, wouldn't it need to have the compound in overdrive before the main goes in fifth, and forth to fifth in a double over would be a lot less RPM difference than first through forth. (almost like a split in the compound)  In reality, 3rd over to fourth under is probably a tiny downshift.  Might try third over to fourth direct ?   😳  This is going off forty year old memories, so I might be a little off. 

Yes I think so. If its a double over (TRT-720) then the main is direct in 4th and 5th main is a real small overdrive. Below is the ratios for a TRT-72 non overdrive triplex with the 5th main direct. The only OD is 5th high split because high split in the auxiliary is 0.85:1.

9 hours ago, skydawg said:

Ok,I`ll try that,thanks.Haven`t done a lot of splitting yet.

It will probably take some practice as it is somewhat counterintuitive. If your in say, 3rd hi split and want the next incremental gear (4th low split), you would, like you said, take the main out of third and let the rpms fall way down to get it into 4th. Then, immediately take the auxiliary out of high split and bring the engine rpms way back up to just under where you were before you shifted the main, and put the auxiliary into low split. Then the next would be a small, "normal" shift of the auxiliary to direct. Then again, a small, "normal" shift of the auxiliary to high split. Then it starts all over again my shifting the main from 4th with a big rpm fall to 5th then immediately following with a shift of the auxiliary, with a big rev match, from high split back to low split. I was always told to never shift both levers at the same time when learning, which is why there is a huge rpm gap when shifting just the main to the next higher gear but I have seen videos of old timers shifting them both at the same time and seemingly never missing a gear. It looks very laborsome shifting both at the same time as one hand pretty much has to be through the steering wheel with your wrist steadying the steering wheel and one palm on each lever. I'm sure it became second nature back in the day to the drivers who drove these things daily fully loaded. As an antique bobtail or hobby truck I think its easiest to leave the auxiliary in direct and shift the main as a normal 5 speed and then when you get to 5th if your on the open road and want top speed you can move the auxiliary to high split for cruising. Below is a good video of a guy shifting one, one lever at a time as I described. I believe he starts out with the main in 2nd as he is just bobtailing......

Someone with experience driving one can chime in but I think what you’re noticing is correct. Once you catch 4th like that you would immediately shift the auxiliary from hi spilt to low split which would bring you back to about 200-250 rpm lower than where you were before (3rd main, auxiliary hi split) you shifted into 4th…if you were loaded. 

Impact of tariffs as it relates to class 8 truck production for US market.....

US truck manufacturing is moving off-shore due to steep tariffs

From the article specific to Mack:

"Sweden’s Volvo and its Mack Trucks unit produce for the US market at plants in Dublin, Virginia, and Macungie, Pennsylvania. But the company says the cost math has turned against U.S. lines. In April, Volvo increased its planned Mexico plant investment by $300 million to $1 billion to support its U.S. operations."

Never in my life have I heard the term but apparently its a piece of oilfield equipment used in the natural gas fracking industry (huge business in this part of the country). It uses a high pressure triplex pump to inject an inert gas into a well bore to stop the flow of natural gas in an emergency. It "kills" the well. I hauled frac sand onto well pads for 2.5 years and never heard the term used. I guess its good I never heard the term because if that truck is needed you probably don't want to be around to witness it....

Did their price include installation or was that just for the part? Mack might be asking double what its worth. Get the part number off of it and see what one can be obtained for from an independent supplier.

Not sure what the end game here is but if you are looking for one to have a functional parking / emergency brake most guys abandon the hand brake and convert the brake chambers to spring chambers. If you need to have it for an exact nut/bolt restoration then that is a different story. Probably be hard to find or may have to buy a whole parts truck to get what you need. Do you have any photos of the one you need?

What is the gross weight of the truck and trailer. I cant imagine its more than 22,000 lbs. A 12 liter 300+ with a 13 speed should be able to comfortably maintain 65 mph on any US highway with 3.55s. Maybe even numerically lower. I don't know. You would think gear sets for an old Rockwell would be a dime a dozen but I guess they probably all got scrapped at this point.

It would be interesting to know if this illegal driver somehow managed to get his own authority or if he was just an employee driver. If he was an employee then there has to be some sort of culpability on behalf of the employer. However, if he was issued a valid CDL from Cali then who knows. Maybe citizenship and driving privilege are mutually exclusive. I don't know. Insurance and attorneys will have a field day with this one.

This won't sit well with some but the driver of that minivan had more to do with their own demise than that illegal truck driver making an illegal U turn. A local news report indicated it happened near mile marker 170 of the Florida Turnpike. The only crossover near mile 170 is the one pictured below. Based on the location of the high tension power poles I think both vehicles were heading North but it really makes no difference as the sight distance going in either direction there is at least a mile. Its a dead flat, uncongested, toll highway with a maximum speed limit of 70mph. The driver started executing the U turn before the video footage starts but it you watch the video from the beginning there is at least 5 seconds before the van impacts the trailer. The van appeared to be at maximum speed at impact. According to the Google machine, the average time to slow a passenger vehicle from 70 - 0 including reaction time is 4.5 to 5 seconds. What was the van driver doing?

10 hours ago, Freightrain said:

It's double.  .86 and .73(something like that).  Per Eaton website.

You may have said it in another post I am missing but what ratio is in your rear end? Are you planning on changing that too?

16 hours ago, Geoff Weeks said:

GM had a 702 V12 (two 351 V6's on one block)

Don't forget the 837 CID V8 of the same family. I think it and along with the 351 and 478 Magnum version of the V6s were also available as Toroflow diesels.

The gas burning semis of the time probably moved the same loads as the diesels did albeit slightly slower. Back then the weights were probably overall less than today and the world moved slower than it does today. I think back then it was probably acceptable and "normal" to have semis pulling steep hills at 10 or 15 mph.

8 hours ago, RoadwayR said:

but since the 6.7L Powerstroke is no longer CARB compliant you hardly see new ones. 

To be clear the Powerstorke is 100% CARB compliant and the diesel powered F650/750 is 100% legal to be sold in CA. Ford voluntarily made the decision to cease sales of diesel powered 19,500+ GVW vehicles. Ford also disbanded from the Truck and Engine Manufacturers Association (EMA) when is started lobbying for less stringent heavy dudty diesel emissions standards.

Certain Ford Super Duty trucks no longer available for sale in California - RV Travel

Ford Excludes More Super Duty Diesel Sales In California - CarsDirect

"A Ford dealer bulletin has surfaced that warns the “Blue Oval” truck builder is shutting off supply of certain Super Duty trucks in California. It’s all centered on Golden State emissions issues. The Super Duty shutdown is Ford’s decision—not something that California cooked up."

Call Watts Mack. Give them your VIN. They will tell you what you have and what you need. I think they have done this many times over the years for people. I have a friend who switched an 88 R686 with Budd steer and dayton drives all over to hub pilot. He spent 25 minutes on the phone with them and had all the answers. Parts were in stock. In his case he was able to reuse his existing wheel bearings. I wouldn't try to guess on something like this and/or get a bunch of maybe answers. Go straight to the source and save yourself a bunch of time and headaches. I would assume they would ship you the parts. I wouldn't want to pay postage or freight on new drums from PA to AK but I would imagine they could sell/ship you everything you need sans the drums and they could tell you the part number of the drums you need. Then you could source those locally.