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Help Support Hardline Crawlers :
u-joint failure... riddle me this
- Thread starter JOOP
- Start date
How'd you know? :redneck: and running 39.5"s :redneck:
I wonder if Bobby joints would hold up to this?
What causes a u-joint to fail like that? Besides the obvious I hit a stump, but what happened for the joint to blow off the caps. I'm surprised these napa joints hold up but the caps don't. The other side has a alloy USA joint in it. I'm always breaking the caps.
you are stretching the ears on the axles, the caps are a hardend steel with little flex so when they try to stretch with the ears the top of the caps pop off
boardbysled
Tree Nerd.
You hit another stump?:haha:
It was in the way. I kinda bounced/brushed off it but stayed on the skinny. I had to keep the forward momentum going. Drive it like you stole it right??
Binder
Well-Known Member
This was my thought too.
boardbysled
Tree Nerd.
It was in the way. I kinda bounced/brushed off it but stayed on the skinny. I had to keep the forward momentum going. Drive it like you stole it right??
:awesomework:
crash2
-Oh no I picked a side-
Needle bearings start to crush--then get shoved into the end of the cap and POOF.... One thing I hated about my old 44.
That would be spendy. How about slap in some good u-joints, tack them, call it good. :awesomework:
It's worth a try, but those ears look pretty haggard...
Tack weld the caps right away before that kind of stuff happens and you'll have a little better life on everything... joints, caps, shafts.
The ears are actually in good shape. i think what your seeing is the grease slung around. Plus those are alloy shafts. I'm not ready to spend $300+ on new shafts.
TreeClimber
Well-Known Member
If you don't press in tight (and smoothly also) then the axle's hole is either out of round or oversized, and the axles are junk.
And buying CTMs or Bobby's joints is a waste of money unless you also upgrade to chromoly shafts at the same time.
If I were you, I'd go wrecking yard shopping, and just keep a spare set of shafts on hand, and then swap 'em out as needed.
Then, when money was available, I'd build a 60. No sense polishing that turd any further if you are going to run 39.5
edit... just read your last post, so get some good U-joints and see how they hold up. My CTMs have held up to 8 years of abuse so far, with 37 Krawlers and a V8.
TreeClimber
Well-Known Member
Jon,
When you take the joint apart, are the clips still in the caps? Alloy shafts are designed for full-circle clips, but Spicer joints only have the partial clips. I'm wondering, if you're simply having a clip failure, which allows the cap to slowly work it's way out of the shaft. Once that happens, then the cross pushes the grease into the void, which eventually blows the cap apart?
When you take the joint apart, are the clips still in the caps? Alloy shafts are designed for full-circle clips, but Spicer joints only have the partial clips. I'm wondering, if you're simply having a clip failure, which allows the cap to slowly work it's way out of the shaft. Once that happens, then the cross pushes the grease into the void, which eventually blows the cap apart?
CHOP SHOP
Well-Known Member
Get Bobbys joints. CTMs are a waste of money. same thing for twice as much money at CTM.
