!@#$%

[CV95XJ]

Big oops. . . . .

Long story short, I pulled my shafts tonight, to make it easier for a shop to setup my gears tommorrow morning, ( done it before). for some reason, (I want to say it was because I was tired) I pulled the inners and outers, and put the hubs back on. didn't even think that the outers hold the hub together. (DUH), took it for a quick test drive around the yard, and BAM!%#$ Their goes the tire! lol,

Damage. . . . Hub pulled apart, snapped the brake bracket clean off, put a good dent in the rotor, and I have a small sod farm in my axle.

It was late so I put a jack under it and left it in my field, Oh well deal with it in the morning, jeeps gonna be out for a while.

sweet! . . . . . . . . . how was your night?

 

[ChiXJeff]

Last summer, a gent at GLJT's Summer Bash did that. Unfortunately, his hub didn't come apart until he was running up Highway 41 at speed. Worse, he's dead as a result of the vehicle rollover.

 

[alwaysready]

its in the FAQ about dana 30's

http://www.naxja.org/forum/showthread.php?t=101343

Two more words on shaft breaks. If you hear the dreaded “Snap, Crackle, Pop”. STOP RIGHT WHERE YOU ARE. If you drive even 5 feet on a broken u-joint, you run the risk of the shafts riding up on each other and popping the ball joints out of their sockets. If you don’t have a spare shaft with you, and you need to move, you may be tempted to pull just the outer shaft out. DON’T DO THIS ON A D-30. The Dana 30 used in TJ’s/XJ’s/ZJ’s/MJ’s/WJ’s is not a full floating axle, that is, the shaft itself plays a role in carrying the weight of the vehicle. With the shaft removed, the bearings will fall apart, leaving you wheel-less.

 

[ChiXJeff]

Actually, this shouldn't be done on any axle that uses this style of hub and unit bearing. Not only do Jeep's Dana 30s do this, Dodge Dana 60's (like my 99 CTD) for a few years also share this same engineering.

 

[WB9YZU]

The Dana 30 used in TJ’s/XJ’s/ZJ’s/MJ’s/WJ’s is not a full floating axle, that is, the shaft itself plays a role in carrying the weight of the vehicle.

Calling a D30 a semi-floating axle is a slight misnomer; though it is not a full-floating axle either.
Unlike a D35 where the axle supports the weight of the vehicle, the axle in a D30 does not; the hub assembly does. The glitch in the system is that the hub bearing is simply press fit together and relies on the outer shaft to be installed and the nut tightened to spec to retain it's integrity.

The poster who mentioned that axle shaft ear damage can cause the lower ball joint to separate is correct, I have seen this. It appears to happen the most when the ears break and the wheel is turned so that the angle between the two halves is more than zero.
I have not had a problem driving off the trail with axle damage in 2WD and the axle is in coast.

Ron

 

[alwaysready]

Calling a D30 a semi-floating axle is a slight misnomer; though it is not a full-floating axle either.
The poster who mentioned that axle shaft ear damage Ron

Ron, i simply quoted CRASH from the FAQ under the DANA 30 thread (link provided).




http://www.jeepforum.com/gallery/files//1/0/8/9/1/4/liftjack.jpg

 

[CV95XJ]

yea, alright guys, now we know:

"Don't drive anywhere, without the outer shaft in."
YOUR JUNK WILL BREAK! it only took about 100 feet of driving.

On a more postive note, I got two brand new unit bearings, for FREE, (warranty, even though its up the carquest guys didn't even look hahaha)
Two new rotors, and pads, also new shafts and U-joints, all going in today.

 

[85xjwoody]

I have broken a few shafts this year and on one break drove at almost a mile to camp with no problems. But it sure helps when it does break it takes out the u-joint and ears all at once

Kim

 

[w_howey]

I had one break, and I didn't go a foot... The ears broke on the outer, the broken ears and the u-joint jammed together and wouldn't let the tire rotate free of the shaft.