85snowdog

The only thing I've been able to find out for sure is it had a drilling rig on the back in 1999. But I don't know if the drilling rig went on it when the truck was new, or something afterward. Interesting that the loadstar looks like a big beast when its sitting by itself . But when its parked beside the R700 it looks like a little toy.

Just wanted to thank everyone for the help. I now know exactly what my trans is , and how it works 😀 . Thanks again . Roadway hit the nail on the head for my trans . Its a MT- 40. And the owners manual that Bobwhite posted was exactly what I had been searching for. I also posted a pic of the inside of the frame to show the smaller 9 inch frame inside the 14.5 inch outside frame .

I really like that . Old GM's and Chevs are always on my radar . There has been some old low milage firetrucks , that body style around here that I have wanted to buy. Unfortunately , they are more $$$ than the budget will allow. Is the dash the same as our north American C60's just reversed for driving on the right ?

I find that interesting. I never saw the resemblance before. I wonder if the doors are interchangeable . Is the dash exact same too? Very cool looking rig . Thanks for sharing .

lol, I agree . I like spokes too.

I think anything could be possible. I have some e-mails out hoping to find some history.

My attraction to internationals is because of my father and my very first jobs. I grew up with them . Drove my first Mack in the middle 90's and realized what I had been missing. For reliability , power, and durability I don't think a R model or DM can be beat. I just have a soft spot for my binders . Brings back good memories .

Yes , the frame is like nothing I've seen. Its almost 15 inches deep with a 9 inch frame in behind it . Its double from back to front. 9 inches over the front and rear suspension . The frame rails extend past / through the grill. I haven't been able to find another one like that with google searches .

Thanks everyone for the replies . I knew the knowledge I needed would be here . I always learn more about my internationals here than on an international forum. Thanks so much for that link BOBWhite. I've been trying to find something like that. Unfortunately my google searches didn't get me anywhere near something like you shared. Thanks again !! The strait frame right out through the grille to the front appears to have held a big winch. You can see something big was bolted there. It looks like the bumper was out even farther but someone has cut it and moved the bumper back in closer to the grille. Theres also evidence of a large gearbox of some type that was mounted to the frame with a driveshaft going to the front of the truck. Its clear to see the spots where there was once hanger bearings . The PTO control on the dash is for a trans mounted PTO. At the moment it runs a shaft drive hydraulic pump. But its clear that's been added after. I think it originally ran a gearbox of some type .

Been gone for a while . For some reason the computer wouldn't let me log in. Tried a week ago and hallelujah ! it let me in . My latest project is a 1972 Loadstar 1800. Its extremely heavy duty , and spec'd like no other loadstar we would see in this part of the world. With the extended frame to the front , 10 stud disk wheels ( factory was 9.00 - 20 ) not what's on it now . And factory auto 6 speed trans . Its only got 38,000 miles on it . It has a 392 gas with 7.17 rears . Im sure it won't be very fast , but moving around the yard it feels like it might pull a house down . I'm actually not sure what I'm going to do with it , other than show it off at the odd show. It's in too good of shape to let it get forgot about and possibly go for scrap. Unfortunately , I don't know any history on it . Im currently working on that . I'm thinking it was from the oil fields from western Canada , or something government . They would be the only ones that could buy a truck spec'd like that . A farmer from my part could not afford a truck like this in 1972. I have a question I'm hoping someone can help with. No one I have spoke with knows what the 3rd peddle is . I'm thinking its some type of retarder. not sure though. I'm hoping someone has had some experience with this trans and can tell me how to operate it properly . The 3rd peddle I'm asking about is circled in the pic. It's connected to a valve body on the side of the trans , very close to the trans cooling lines . Thanks in advance

Welcome aboard , I like your setup . I don't think you can go wrong with Mack trucks and Deere equipment .

Not saying its right or wrong. But I think this is the sicker BOBWhite referred to .

Thats why I wanted to reply to your question . Your like me , always willing to learn more .

That makes this an interesting "U" model . Too bad the poster never came back . Thanks for the info

Funny how he all think it would be better somewhere else . I actually had a 1970 Chev pickup from Charlotte . It was totally rust free . I thought it must be amazing to live in a place where things don't rot away from salt .

Thanks Jojo , I don't stop in very often this time of year. I see your busy helping people . BMT is lucky to have you . I still wish you could come north , lol . I don't have a good Mack mechanic . Wish I did 😀

A little more digging ......... If its a true " U659 " there was only 501 built in 1979 only . Thats it . So it could be pretty rare .

I see the poster that asked this question never came back . But I wanted to help shed a little more light on it for you . The first number 6 you got right . The 59 is the engine code . From my list from BMT , its a Cummins NHRS6B/320 . I honestly don't know what that is ,lol . Hopefully you can help in that department . You got everything else right , as far as I know . The ST at the end of the number means a little more than twin screw . The "S" means twin screw . The "T" means it was built to be a tractor .

Thanks so much for sharing your pics . As always , they are great photos . I tried to pick my favourite , but there is so many nice trucks I couldn't . lol . Thanks again

Looks great Vlad. Like the others , I love reading your adventures . Is it an R688 ?

Sorry to hear this. RIP superdog.

Looks like the dog is living a lot better life than the freightliner did . LOL Dog looks very happy and content 😀

Yes, your right . Well said

Looks great !!! Thanks for sharing your progress with us .

Thanks , but I can't take any credit for any of that info. Everything I know is from this great forum. Unfortunately , the trivial stuff I know doesn't keep trucks running . The knowledge you and others bring forward is way more important .