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10.25FF destruction....
Posted: Sun Mar 19, 2006 10:25 pm
by VerticalTRX
Some pictures as per leach's request:
A little background info for those wondering, thats the 10.25FF under my F-250, left a stoplight a little too hard and sheard all eight hub bolts off, I thought it was kinda of an interesting breakage, never really seen anything like it before.
Posted: Tue Mar 21, 2006 12:03 pm
by Steinberg
Were the bolts torqued down all the way? If they were loose then less of the load would be carried by the friction between the clamped surfaces. By themselves the bolts really can't carry a lot of shear load.
Posted: Tue Mar 21, 2006 12:18 pm
by VerticalTRX
Well, I can't rule out the fact if they were loose or not, but they were torqued to spec. last time I had it apart, also the bolts on the other side were still tight, so IDK.
Posted: Tue Mar 21, 2006 4:45 pm
by Trailduster79
that's unique.
Posted: Tue Mar 21, 2006 4:56 pm
by Steinberg
I'd bet a dollar that they were loose and have been fatiguing for some time before it failed. So how are you gonna get the broken studs out?
Posted: Tue Mar 21, 2006 5:19 pm
by VerticalTRX
Actually this happened some time ago. It took an hour or so with a cordless drill and some easy outs, those bolts were stupid hard. Also most of them didn't unscrew very easily(but a couple did), not sure if that would tell if they were tight or not.
Posted: Tue Mar 21, 2006 5:45 pm
by Steinberg
they were probably bent or deformed enough from the breakage that the threads dragged a lot more.
Posted: Tue Mar 21, 2006 6:15 pm
by VerticalTRX
Yeah thats a good possibility. I haven't been having good luck with the drivetrain on that truck lately, esp. considering only the very light-wheeling that it sees. I blew out a hub/stub-shaft in the D50 last thursday
Posted: Tue Mar 21, 2006 6:27 pm
by Leach
mmm carnage. Whether or not the bolts were tight, the skinny pedal had something to do with that. Nice pics man.
Leach