Getting the Shaft

mark · Mar 17, 2008

CHOP SHOP said:
thats funny I still have the last broke yukon shaft I bought. it broke with 36inch radial swampers with an auto in mud too. ***** **** :looser: went to warns, been fine since:cheer: seems yukon outer shafts are allways a month back orderd too:masturbanana[1]:

I have watched as Bobs machine twisted off YUKON 35 spline chrome d60 shafts easily. it starts to groan and get angry when he tried to break a 60 birfield. it wont do it without destroying itself.

what I dont get (birfields aside, only shafts) is how strong the shafts are not the birf. his 30 spline toyotas break the inner shaft at 9100#s, none of the ujoint shafts even came close. the shafts with superjoints that did not have joint failure, but shaft breakage broke at half the torque and twist.

same thing with d60 shafts. the YUKONS blew the shaft (not joint or ears) apart at 12,100#s with about 90 degrees twist. Bob draws a line down each shaft before testing it. the yukon stays twisted after the test (retaining damage done before the actual breakage).
his machine wont twist off the same diameter 35 spline birf axle at all. why not?? cuz not only is the birf stronger, the SHAFTS are stronger too.:fawkdancesmiley:

when the toyota 30 spliner shaft breaks at 170 degrees twist, the line straitens back out perfect. so a person could push this axle to the limit (160 degrees) and it would have no damage. :cheer:

why is it nobody (birfs aside) can even make a shaft that is as strong as Bobbys?? 60 or 44???

we were at the hammers and a guy showed up with longfields (27spl) and saved some dough and bought some (I think) MOSERS:looser: inners. he pulled them out and both were not broke but twisted at the splines. ready to let go anywhere

I would go with the 60birfs just to get the higher quility shafts, with birfs being a bonus:awesomework:

The the point of your whole post is that Bobby's shafts are stronger than Yukon shafts....

duh. I don't think anyone one was questioning that. But Yukon shafts are what, 1/4 the price of Bobbys stuff?? So it really bang-for-the-buck kind of thing.

I'd be curious how Bobby's shafts compare to Superior, which (webwheeling says) is supposed to be top-dawg in U-joint shafts... but with a supply issue right now (lots of stories of LONG lead times).

The way I see it (agian, web wheeling):

Yukon's: for the most part, and upgrade from stock
Warns: Upgrade from Yukon's
Superior: Top
Bobby CV's: The hella *bling*!!
________
Milf russian

CHOP SHOP · Mar 17, 2008

mark said:
The the point of your whole post is that Bobby's shafts are stronger than Yukon shafts....

duh. I don't think anyone one was questioning that. But Yukon shafts are what, 1/4 the price of Bobbys stuff?? So it really bang-for-the-buck kind of thing.

I'd be curious how Bobby's shafts compare to Superior, which (webwheeling says) is supposed to be top-dawg in U-joint shafts... but with a supply issue right now (lots of stories of LONG lead times).

The way I see it (agian, web wheeling):

Yukon's: for the most part, and upgrade from stock
Warns: Upgrade from Yukon's
Superior: Top
Bobby CV's: The hella *bling*!!

I wasnt pointing out which was better, (that was a side effect). I was pointing out the yukons I SEEN with my eyes, not webwheeling, sucked and broke.

most birf haters always blame the joint for shaft failure.:masturbanana[1]: all I was pointing out was that even the shafts are inferrior not just the joints.:fawkdancesmiley: I stated facts that I seen, not read. hell I was runnin the axle machine at the hammers and writing numbers down, not webwheelin.

Binder · Mar 17, 2008

CHOP SHOP said:
thats funny I still have the last broke yukon shaft I bought. it broke with 36inch radial swampers with an auto in mud too. ***** **** :looser:

I guess that's what you get for wheeling like a *****..:haha:
Did you stop to think that 99.9% of shaft failures happen with the wheels turned? Were these tests done with the joint at a angle or straight?

Berne · Mar 18, 2008

I'll say, w/ the direct experience of two fat-ass rigs on reasonably big tires wheeled kinda hard....:beer:

Yukons and CTM's have held up reasonably well. we've broken a few, and some of them were "obviously" some 'bad-batch' issues, and a couple have legitametly just broken....
but for the price, they aren't that bad. WAY better than the spicer stuff.

CHOP SHOP · Mar 18, 2008

Binder said:
I guess that's what you get for wheeling like a *****..:haha:
Did you stop to think that 99.9% of shaft failures happen with the wheels turned? Were these tests done with the joint at a angle or straight?

Bobs machine tests them with the axles turned. and I wasnt breaking the yukons, a customer was.

Binder · Mar 18, 2008

With the shaft turned it broke the axle before the U joint or ripping off the ears?

longfield · Mar 18, 2008

We always test the Dana 60 & 44 shafts that all the axle companys send us to test we put a pin throw the axle ears and test them streight, other wise you would have to use 2 shafts a u-joint to test them turned. We test all our CVs at full turn. WE did a lot of testing at Randy's at Randy's ring & Pinion a few months back it was a big wright up in Jp mag. There are pic. on pirate of the machine testing but i don't know how to move them.

Bunk1 · Mar 19, 2008

My yukons and Long superjoints have held up to serious punishment over the last year. However the long side inner is starting to twist at the splines...

briejer · Mar 19, 2008

I like to see money spent to local vendors, so buy from Jantz or Bob

I'm stuck buying my **** from Germany, and the way the dollar is right now, a trunion with caps are $800......thats $3200 for one axle $6400 to put new caps and truions on all 4 corners.

TreeClimber · Mar 19, 2008

longfield said:
i don't know how to move them.

Just right click your mouse over the link, then copy and paste the link here. Everybody can just follow the link to the pirate write up.

longfield · Mar 19, 2008

TreeClimber said:
Just right click your mouse over the link, then copy and paste the link here. Everybody can just follow the link to the pirate write up.

THANKS FOR THE HELP!

WE ARE NOT GOOD AT THIS.

crash2 · Mar 19, 2008

longfield said:
THANKS FOR THE HELP!

WE ARE NOT GOOD AT THIS.

If ya need help bobby just give a yell :awesomework:

Jaydog · Mar 20, 2008

Not sure if this is the thread Bobby is talking about, but here are some pics of his machine

http://www.pirate4x4.com/forum/showthread.php?t=467075

longfield · Mar 20, 2008

Jaydog said:
Not sure if this is the thread Bobby is talking about, but here are some pics of his machine

http://www.pirate4x4.com/forum/showthread.php?t=467075

Yes thanks. But stock Dana 60 broke at 8,300 f.b. not 6,500 f.t.