doubleclutchinweasel

I hope you find this. It’s one of those things I wish I could see in person. I love a mystery! Strange it’s only in lo range. And that it only grinds during shift. Said nothing about grinding during up or down range shifts. No grinding in high range. No grinding under acceleration or deceleration. A video would be awesome. As you can tell, there are enough guys on here with enough experience to fix most anything. Onyx, Mech, JoJo, FJH just to name a few. If these guys can’t fix it, it ain’t broke.

Incidentally, I bought some off-brand primer to put in the R once, because the original was leaking. The new one worked, but I never could get it to seal in the housing. Leaked around the threads. Bought a set of seals from a pump shop in Knoxville and rebuilt the factory piece. Worked fine from then on.

I just wondered if there is something in the air system that could be causing it to try to go to hi-range when there is no load on the trans.

Yeah, once in a while...

F? JoJo? Thoughts? You know that system WAY better than I do.

Nothing like a pressure-filled fluid system!

Something wonky in the air system, causing the range shift or the splitter to try to shift unintentionally? Pinched/cut air line? Bad piston seal? Bad valve? JoJo and FJH can work miracles for you, if you can give them enough info to work from. If it works right in hi range, that might be a clue.

Definitely there through some of the best stuff.

I still can't get over that truck. I wanna say it looks like it just rolled off the assembly line. But, I think that might be an insult. I don't know that they ever looked that good from the factory. Only thing wrong with it is that it's not sittin' in my driveway. That would make it better.

I think I mentioned this before. A local construction outfit had a green one when I was young. One of the owner's sons crashed it with a fuel tanker behind it and died. They later put a blue/white Pete cab kit on it. Still had the green frame, and a couple of the gauges still had the pentastar on them. I drove that mongrel one trip across town. Always felt eerie sittin' in it.

I was still doing construction work when the D10 Cat tractor first came out. It was the object of a running joke the old guys used to pull on the new operators. It's in pretty poor taste, but, if anybody wants to hear it...

Not much help, but a picture... Probably have a better chance of finding a left-over E4465B than an actual Mack 301SQ32B......IF that's even the right thing. Just trying to give you a starting point. Ask Watts? Might have to have a local machine shop turn you some new bushings. Or, look through industrial catalogs for a Teflon-lined sleeve bearing

Maybe this Euclid number? https://www.comoros.ubuy.com/com/product/5AX3FXRT6-new-listing-301sq32b-king-pin-set-e4465b-euclid-mack

Read this...

They did sometimes develop leaks.

Here's you a little something...

That does look to be a double-reduction axle. You can see the caps for the cross-shaft in the lower picture he sent (see below). I have never heard of any issues with these. They are, as mentioned above, not that much different from the standard Mack tandem axle, just rotated 90°. Power Divider makes no sense whatsoever in a single axle, UNLESS they put in something similar to the inter-axle Power Divider as a limited slip unit? Instead of biasing power to the front or rear axle, it would do so to the LH or RH axle? Just guessing on that, though. Basically would be like a gear type limited slip unit. Maybe somebody smarter than me can shed some light on that. Incidentally, I have seen both these "front loaded" and "top loaded" Mack axles in single-screw applications. I saw a LOT more of these "front loaded" units in B models than in R models. I say keep it! And paint the "Mack" script in a contrasting color so everybody can see it!

I gotta agree with mechohaulic. That brown molded steering wheel is the biggest clue to this thing. It is highly unlikely that the steering wheel was NOT factory. So, with a factory brown wheel, I would not be surprised to find the factory painted the interior brown as well. And, like h67st said, Mack would do just about anything you wanted back then. I'd say this has a decent chance of being a genuine factory brown interior, making it the only one I have ever seen. Like the others, I have seen red interiors with molded red steering wheels on fire units. I'll bet there are a few more rare ones out there, but I have no idea how to ever find out what/who/where. It will be interesting to see the build sheet, because they might have some record of it on there. Normally, the original exterior paint color is on there. It would seem logical to put any "special" interior (or frame) colors on it as well. Can't wait to see where this goes!

Did you ever find any pictures that matched that truck? One of the guys over at Just Old Trucks had some interesting pictures he posted recently. maybe you could look through the Mack thread there and see if you see anything that rings a bell. http://forums.justoldtrucks.com/1008/Mack-photos-A-Tribute-to-the-Bulldog?PageIndex=116

This thread is almost as old as that truck!

Henry Fonda as "Elegant John" in "The Great Smokey Roadblock" (1977). Called his truck "Eleanor". Some pretty big names in it.

This was at the show a few years back.

Nothing like that in our local Sam's...

https://www.stemco.com/?utm_source=paidsearch&utm_medium=textad&utm_campaign=2022search&gclid=EAIaIQobChMIjLGf4vij-gIV0ClMCh3VugOKEAAYASAAEgLwvPD_BwE

Brad's show was pretty good. Lots of familiar trucks there. Several new ones. And, a few favorites noticeably absent. Went by to see Brocky, but he was chatting with some other guys. Next trip, he was off to answer the call of nature or something. Sorry, Brocky. Maybe next time! Met up with 1961H67. Good to put a face with the name. Can't wait to get over to his place and look around. Sounds like some interesting stuff going on over there.