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Busted 14bff shaft & detroit *PICS*

Hossbaby50

Hossbaby50

3/4 ton status
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Location
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Here are the pics of my buddy's 14bff shaft and side gear from his Detroit. Just thought you might like to see some pics. For anyone who missed the other thread about this the truck specs are:

Chopped & Bobbed Burb, TBI 350, SM465, NP208, 10b locked & crossed, 14bff locked, 38" swamper TSL's.

14bff1.jpg


14bff_detroit.jpg


HPIM0234.jpg



Harley
 
that sucks. i've only blown out my spider gears but i also run 1/2 ton running gears :doah:


for now...
 
WOW!

that's pretty crazy.

How did it break? Under what kind of stress was it under (ie: was the tire wedged...)

How'd he get home??
 
Clod_King said:
WOW!

that's pretty crazy.

How'd he get home??
Click to expand...

That's the nice thing about a FF axle, lock the front hubs and continue to drive home. :thumb:
 
:eek1: :eek1: :eek1:

Holy crap! I know it broke but not near the flange, I visioned that it broke at the splines.

I better head back to Pick n Pull on Wednesday and grab some 14b shafts. Gotta go there anyway to pull out 10b shafts that Jason found and exchange a bad xj shaft.
 
He was under some decent stress climbing a waterfall from what I have been told. Nothing super hardcore though from what the spotter told me yesterday. Nothing we don't do to them in the rocks on a regular basis.

They left that truck on the trail and went back to town to fetch some spare parts not knowing the Detroit was wasted and it was basically useless to replace the axleshaft. They drug it up the waterfall with my buddies buggy and strapped the truck the rest of the way off the trail. That rig is trailered so they got it back to the trailer and loaded it on to get home.

Harley
 
Randy92782 said:
i woulda guessed it was a DD?? :rolleyes: :D
Click to expand...

That was his DD until about a year ago when he got his Dodge Cummins. The only difference is he had his doors on and a windshield in when he DD'ed it.

That shaft has been in the truck since stock I am sure. It did a decent amount of its life towing but it is still a 14bff and only 38's which is the part that shocked me.

Harley
 
I was just wondering if he beat the hell out of it before. My BIL lives out there, and the trails that they drive are tough. I can see where cumulative stress would cause problems.
 
Randy92782 said:
i woulda guessed it was a DD?? :rolleyes: :D
Click to expand...

AZ is pretty liberal about what you can drive on the street. My other buddy DD'ed this truck until last year also when he bought a towrig/DD.

14536MVC-731F.JPG


Harley
 
Hossbaby50 said:
10b locked & crossed.... 38" swamper TSL's.
Click to expand...
Hows that 10b holding up? I was gonna hold off getting 38"s and locking my front end untill I get a d60. But if it holds up for awhile with that setup with the burban....maybe my blaze could handle it
 
Hossbaby50 said:
AZ is pretty liberal about what you can drive on the street. My other buddy DD'ed this truck until last year also when he bought a towrig/DD.

14536MVC-731F.JPG


Harley
Click to expand...
now THAT is bad
 
wow...thats an insane break for "only" 38's...but I guess a fully locked rear end trying to turn 38's under a big 'sub can do that :) What gearing was he running? I bet that has a lot to do with it too....
 
There is no deformation at the break so it appears to me that it just gave up the ghost all at once. It does not appear to be a growing fatigue area due to no plastic deformation just catastrophic failure. Impressive to say the least.:bow:

It just said "I quit and Mr. Detroit you are coming with me" all Jerry Maguire style:doah: .

Dik
 
lochenjons said:
Hows that 10b holding up? I was gonna hold off getting 38"s and locking my front end untill I get a d60. But if it holds up for awhile with that setup with the burban....maybe my blaze could handle it
Click to expand...

It is holding up ok, but he has broken a couple shafts. He is REALLY good with a clutch though otherwise it would be worse. His 38's are really more like 37". I run 37's and a 10B and I have had several failures. So have several other friends running 37's with a locked 10b.

I believe he is running 4.10 gears in the diffs. He just locked up his stock axles with a Detroit and lockright and called it good with the 465/208.

Paul, you shouldn't flat tow a FF without axle unless you overfill the diff some. The axleshaft is what helps keep lube flowing down to the bearing hubs.

Harley
 
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