So I generally just lurk these forums because you guys are way to hardcore for my little XJ on 33s. But, I've been installing a new axle in my XJ and my uncle found out....

Well he has a 1978 International Loadstar 1750 single axle dump truck.
He's managed to snap 5 axle shafts in as many years. He uses it on his cranberry farm to haul sand (first problem) and it's getting driven arround on sand dikes (2nd problem) and it regularlly gets stuck (final problem)

It's a stick shift of course, and by the time it stuck and they are trying to throw in the clutch it's too late. The rear end jumps around an SNAP

Does anyone know what kind of axle this thing has? I've been googling all over and can't figure it out. I know he's paying $350 for an axle shaft, I told him to ask the repair shop what kind of axle it was... they told him "An international axle" lol

Also, any tips on how what we could do to prevent this in the future. The axle is GINORMOUS, it floors me that he's able to snap it.

any advice would be welcome!

www.binderplanet.org

Welcome to Wal-Mart :)

I've been around dump trucks for the last few years. Even our biggest idiot has yet to break an axle. Your Uncle ius doing something wrong.

Keep in mind any old axle has stress built into it and may not have long to live. I'm thinking since it is a sand truck, maybe he needs to be running super singles in the rear. Also possible he needs an automatic transmission :homer:

...Also, any tips on how what we could do to prevent this in the future...

any advice would be welcome!

1) Don't haul sand with it.
2) Don't drive around on sand while hauling sand with it.
3) Don't get stuck hauling sand while driving around on sand.

Problem solved. :flipoff2:

The problem is that IH mill makes too much torque. Swap in a 196 or SBC or take a couple of the spark plug wires off of it.

Um, yea... dont think I can talk him into not hauling sand or pulling sparkplug wires.

What are super singles? Are they just narrower?

No, they are fuckin wide ass tires, twice as wide as a normal commercial tire. You use one tire instead of two.

It is an international axle.

How is the rear end jumping when he is driving on sand?

Next time you get stuck, don't drop the clutch.

A couple years back when I worked in a trailer shop they had a single axle IH daycab used for moving trailer in and out of the shop as well as pickup/delivery. Well there was this new guy who was moving in an old chicken trailer and the mech asked him to slide the tandems on it. It was so crusted over with chicken shit that they wouldn't slide. Mental Midget gets the bright idea to rev the motor and dump the clutch... Yeah, snap. He blamed it on the mech. :shaking:

ah, 1stly, I've never driven the thing. I've only had the jumping described to me second had... but I dont think it happens often. The problem is, when it happens it snaps the axle shaft.

You have to remember... these dikes are man-made. So they are pretty soft. It's really easy to sink into them.

I'll relay your advice though.

First of all, go here and check the Loadstar section of the forumn. Lots of loadstar questions/info. Just register and ask away.
http://oldihc.org/index.php
Check out the springs,hangers Etc. for any breakage. While under there inspect the frame. You didn't say if it was always the same side axle shaft, but ain't no way it is breaking without help from something else. BTW, find another shop for your work. Those guys are making boat payments with all that axle work.
And, yeah, those 'super singles' will let you float on that sand. Lots of $$$ though.

We have the same problem with one of our digger trucks. Ours is a 78 with an eaton rockwell rear end i beleive, should have a fairly large shiny tag rivited to the back of the passenger side axle tube that will tell you everything about it. in 5 years iv seen alot of axle shafts break in that thing. Always the passenger side, and i know they arnt cheap. I think it just might be the nature of the beast when you get all that weight on it because iv seen them grenade themselves when creeping in reverse, or taking off from a stop of flat ground.

I would guess that either the housing is bent or more likely you need a stronger rear axle assembly. You could send an old axle shaft to a company like Mark Williams (whoever makes flanged shafts) and have them build you some bling bling 300M shafts but I wouldn't be surprised if it still exploded. Myself I would just sell the truck and buy one with a stronger rear axle.

I would guess that either the housing is bent or more likely you need a stronger rear axle assembly. You could send an old axle shaft to a company like Mark Williams (whoever makes flanged shafts) and have them build you some bling bling 300M shafts but I wouldn't be surprised if it still exploded. Myself I would just sell the truck and buy one with a stronger rear axle.

Or two rear axles :homer: