this is a new one, diff explosion

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mooman007uk

mooman007uk

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Whilst giving my MT the usual thrashing I did something new in the way of mechanical failure, I thought it was pretty awesome when i stripped it down and discovered the shrapnel, guess it proves the tempering has definitely fixed the diff cup problem. It looks like the pin snapped and shattered the bevel gear which cracked the case


DSC00470.webp


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here you can see the diff cup shaft has a groove worn in it but didn't twist, deform or snap...perfect


DSC00479.webp
 
yolonda21 said:
That exact thing happened to me several times last fall.....
Click to expand...
mine exploded too. pin sheared right off the drive cup and split the spider gear in 4 pc's as well as cracking the diff case.. i'll look for some pics
 
Moo, you are gonna need to replace your whole truck with as many times as you have taken the screws in and out. Is there any threads left? lol
 
must admit it was a good one, and this is the upgraded pin and cup and I haven't seen an upgrade pin go yet but I could be wrong.


I'll be posting a vid later today of a very big jump, just got loads of topsoil delivered for my back yard and have formed a rather large ramp to hit flat out, I expect some damage on landing even if I get it right:D
 
here is mine moo.. its the up graded pin that sheared off. didnt break the drive cup, but exploded the diff case.. (these are old pics)


i cant resize the pic.. don't know how.. :mad:
 
Could it be that the bevel gears are too hard also? I wouldn't doubt it since they are hardened for wear and tear which would make them brittle. Maybe you should try to temper those too.
 
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