[Spicergear]

Aside from the cascade box? Still learning Mog parts and came across the crawler box for the 404's. I didn't realize they bolted onto the bottom of the transmission in place of the steel plate which in my mind is a great idea. For those of us chaps not blessed with cascade boxes, is there a crawler box option like the 404? I searched and googled but couldn't find the difinitive YES, but thicker 406 gears require... or NO, nada, zero, zilch, ain't gonna go no matter- type answers. I'm speculating it the second, but would love to hear if there is anything.

Thanks all!

 

[ACAD_Cowboy]

Nope, Nada, Zilch... either you cascade or you go home and cry.

 

[tkv000]

Never say never, I thought we learned better by now

http://www.benzworld.org/forums/unimog/1669311-411-style-crawler-u900.html

What's your transmission number?

 

[Mac81]

Yes, there is and I DO have one in stock but there is a forum member that's been waiting for me to test it before i send it to him

I think i should send it to a Chinese factory first and have 10 pieces made.

Now that i think about, i should see if the 404 ones, can be adapted to fit on a 406.

 

[ACAD_Cowboy]

As with all things unimog, there are just some word they just never learned as children, concepts they find fuzzy and vague.

Here we have yes, there is one, but it only fits early gearboxes. We then also have yes I have one which came off a later series truck that has no real good reason to have the early transmission.

 

[Spicergear]

I LOVE THIS SITE.

I gotta check my transmission number, cross my fingers, then count all my pennies!

I've been having this nagging concern with the front 3pt hitch and 8' snowblower I'm adapting that I'll be carrying too much wheel/ground speed with not having the cascade box.

Thanks guys!!!

 

[unimog_jason]

I'm not an expert on this area of Unimogs, but if I recall correctly the F series transmission supported the crawler box and the F series was discontinued in the early 70's.

Like I said, I'm not an expert but I wouldn't get your hopes up.

Jason

 

[techMOGogy]

I thought you could have the bolt on crawler box (with right tanny) but then you could not have the PTO?

 

[unimog_jason]

The high speed PTO and the crawler box bolt onto the same locations, the 540/1000 PTO is pretty much the same as the UG1/11 transmission found on the 411 & 404 (and I think the 421 even used the UG1/11 at some point too).

Jason

 

[bwswede]

Spicer,

You are correct, your ground speed will be an issue without a crawler. You could still blow snow without a crawler transmission but you wouldn't be able to blow snow that is very deep.

BWSwede

 

[tkv000]

I was reading a German forum about blowing snow. Fellow with a 411 and a "propeller style" Schmidt Blower though he was in crawler gear, but was instead in 1st regular gear, He popped the clutch, which (you know, at the lightning speed a 411's 1st gear is ) ran him into the snow bank he was going to plow in crawler gear. He said the propeller blower pulled him in so quick he didn't have time to react, and ended up with a wall of snow on both sides of the doors, and had to be pulled out backwards (he didn't elude to why he didn't reverse out...)

Could be exagurated, but others seemed to agree, for the deep heavy stuff, you need crawling gears :surrender:

 

[ALASKAT]

Great info, heck I may have one beneath a burned up 411 the old timer had two blowers and one power pack that rode in the back of one of the 411's in his fleet. It will be awhile before I know.

 

[VON]

I think I have at least one or two 20 speeds for sale if you really need one!!

 

[tkv000]

Lets be honest. THIS is why you want crawling gears

 

[Spicergear]

Bugger! Yep, caught me.

Okay Transmission Guru's... here is my transmission number: 406.261.07.01

Is there a crawler box to fit?

 

[Spicergear]

Thanks BWSwede, that's been a concern this whole time. I have a 540/1000 PTO on my bench with the same casting number as the 540 unit on my transmission and after going over the bolt spacing, *looks* like it is one of the few (I've heard) that will work. I had considered putting that on, but have no idea if that would be counter productive with the blower...or just asking for the blower to vibrate apart.

Spicer,

You are correct, your ground speed will be an issue without a crawler. You could still blow snow without a crawler transmission but you wouldn't be able to blow snow that is very deep.

BWSwede

 

[bwswede]

Spicer,

Do you know what kind of blower you are going to put on (agricultural, Schmidt etc.)? I think most blowers run at 540 so you may be fine with what you have.

BWSwede

 

[Spicergear]

Thanks for that info! It's definitely AG style for 3pt hitch. I've shortend the lift points up by about 14-16" so it's not way off the front of the machine. Raised the 90* drive unit up to PTO level and offset it, plus flipped it over to correct the rotation. About 75% done with the front 3pt hitch and hope to be burning some rods tonight on the main lift cylinder mounts. Soon to order 1.75"x 6 Weasler yoke too. Blower is in actually good condition with the factory red paint faded and some surface rust. Other than that, it's rock solid and not beat up. Think it spent a lot of time sitting outside...



Still hoping to be able to use one of these crawler boxes if at all possible!

 

[Ragnian]

I have a similar problem…and did a little research. My transmission is the “G” type I guess they are a bit newer and supposedly stronger. Anyway it has a dual plate clutch which requires that is has the housing for the ultra-low range gears (not sure they are actually called crawler gears for that transmission). My truck has all the levers of a 20speed transmission minus the “crawler” gear selector in fact there is just a cap over where the crawler gear selector would be….I am hopeful that it is just missing the selector but based on discussions with some on this board and some MOG experts in Europe it is most likely it was sold without that gear set.

Good news is I did find out my transmission “G” type with double clutch and pathways for crawler/worm gears in the MB option code index can be retrofitted with ultra-low range gears …though it might be more cost effective to buy a complete 20spd transmission. That has not been decided yet.

I want to use an agricultural snow blower with the truck so having the ultra-low rang gears seems important for that purpose also knowledge gained from others on this board. Thanks!!!

Spicer if you are running an AG blower you will most likely need a PTO reverser…or modify your blower (edited since I posted after Spicer explaned he has already solved the PTO reverser problem)…there are others on the board that know a lot more about that than I. I went with a PTO reverser.

…….I admit there is a bit of TKV0000’s reasoning in why I want the ultra-low range. 

 

[bwswede]

Spicer,

Your solution to power the blower while reversing the direction of the pto sounds interesting. When you get a chance it would great to see photos.

BWSwede