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Drive shaft snapped at 103K miles

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Old 03-07-2015, 09:44 PM
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Default Drive shaft snapped at 103K miles

Has this happened to anyone? No idea what caused it.

Just cruising along at 45-ish and clank clank snap ...
Old 03-07-2015, 10:35 PM
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Don't you mean ..... U-joint failed. ????? It's EXTREMELY difficult to snap a driveshaft.

Need more details. *Especially vehicle particulars - year, model, cab, trim, engine, wheelbase, _x4 drive, etc..
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Old 03-07-2015, 10:40 PM
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Originally Posted by gDMJoe
Don't you mean ..... U-joint failed. ????? It's EXTREMELY difficult to snap a driveshaft.

Need more details. *Especially vehicle particulars - year, model, cab, trim, engine, wheelbase, _x4 drive, etc..
.
Yeah, most driveshaft issues I have seen have been from racing and insane launches. Do you tow a lot? Have pics ?
Old 03-08-2015, 12:36 AM
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No I don't ever tow and no I didn't take a pic.

Obviously, the shaft itself didn't break; one side of the shaft's "u" snapped (not the differential's u-joint), but the shaft's "u" isn't a separate part.

First it rumbled like I ran over something metal but there was nothing in the road. Then it behaved normal for about a 100 feet and then clank-clank-BANG.

I pull over on a freeway ramp and see the shaft dragging.

Dealer doesn't get the part till Wednesday so I can take a pic if needed.

I've done some nasty launches but only a couple, if that's a factor.

Oh ... '09 FX4 Supercab short bed; 5.4, 35" Toyo OC Muds, no lift or mods.

Last edited by FX4ord; 03-08-2015 at 01:07 AM.
Old 03-08-2015, 12:46 AM
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Originally Posted by FX4ord
No I don't ever tow and no I didn't take a pic.

Obviously, the shaft itself didn't break; one side of the shaft's "u" snapped (not the differential's u-joint).

First it rumbled like I ran over something metal but there was nothing in the road. Then it behaved normal for about a 100 feet and then clank-clank-BANG.

I pull over on a freeway ramp and see the shaft dragging.

Dealer doesn't get the part till Wednesday so I can take a pic if needed.

I've done some nasty launches but only a couple, if that's a factor.

Oh ... '09 FX4 Supercab short bed; 5.4, 35" Toyo OC Muds, no lift or mods.
No mods, auto; launching probably didn't do it. Pretty crazy. If you do manage to get pics, would love to see what exactly happened.
Old 03-10-2015, 12:19 AM
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Originally Posted by Troponin
No mods, auto; launching probably didn't do it. Pretty crazy. If you do manage to get pics, would love to see what exactly happened.
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Old 03-10-2015, 12:42 AM
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I'm going to guess that the bearings in the U-joint cap froze to the shaft due to "permanently lubricated" and that's what caused it to break. Remember when we used to have grease fittings on those things?

It is possible you hit something though. Does the piece left in the rear axle move freely? What about the part in the driveshaft?
Old 03-10-2015, 12:43 AM
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That sucks!
Blown U Joint... Idk if they can fix the driveshaft. Get a used one and save some cash.

Fortunately, it didn't mess up your differential yoke.
Didn't anything else underneath get messed up beyond repair?
Old 03-10-2015, 12:48 AM
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Whatever you end up doing make sure you get grease able u joints for it
Old 03-10-2015, 12:52 AM
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Originally Posted by tanked_darren
Whatever you end up doing make sure you get grease able u joints for it
I agree.

I didn't think driveshafts were too expensive if you go aftermarket. I agree that a good condition used one is your best bet for a truck with 100k miles on it though.


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