Broken front axle
#11
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Ya know, I agree 100% (that this is not a huge issue - 4 out of over 3000). I've been wheeling for a while. To date, the only stub I've seen with the ears mowed clean off has been on this board while out for a casual drive with stock tires. Really? No Jeep is ready for the Baja 1000 from the showroom floor and they will break - so will everything else you can buy. I'm very comfortable wheeling my rubi with 35s and I'm not deterred by the failures I've seen here. Bottom line is they are likely 100% attributable to the driver. What's new about a D30 w/760x joints? Not a JK problem IMO. What's the rule? As slow as possible, but only as fast as necessary.
http://youtube.com/watch?v=Cvn13MKSc6E
Last edited by aas; 05-28-2007 at 07:21 AM.
#12
Nothing in your driving???? 2500-300 rpm's in 4lo 1st gear is a lot of rpm's. You problably had lots of whell spin and then you got traction, perfect recipe for disaster.
#13
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#15
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That's what I meant. Brake-lock traction control locks down the brake on a spinning wheel (poor man's locker). I've seen a lot of people refer to it as ESP, which may be a misnomer. According to the manual, you can't turn this off.
#17
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The way I read it --
ESP is automatically "off" in 4-lo unless your vehicle speed exceeds 40mph... TCS (traction control system) in 4-lo is automatically off irregardless of vehicle speed and remains off while engaged in 4-lo...
ESP is automatically "off" in 4-lo unless your vehicle speed exceeds 40mph... TCS (traction control system) in 4-lo is automatically off irregardless of vehicle speed and remains off while engaged in 4-lo...
#18
Well, mine just broke. I was off-road in some sand dunes, attempting to get up a very mild hill. I was in 4-lo, and i heard BANG, followed by clunk clunk clunk... I let it roll back down the hill, and looked in the sand. I didnt see anything visible so I drove out to the pavement, probably about 1 minute away. When i get out, I clearly see the U-joint had a catostrophic (sp) failure. It completely ripped apart, and took part of the axle shaft that connects to it. I used chysler's roadside assistance and within 45 minutes they towed my jeep in. Met with the jeep dealer and told them I was on a dirt road in 4WD and it broke. They didnt question it and the parts have already been ordered. I should get it back sometime next week.
edit: My 4 dr JK X, was built in 02/07. It has 2500 miles on it.
edit: My 4 dr JK X, was built in 02/07. It has 2500 miles on it.
#19
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I'm not sure if they were that high, but even if they were at 3000 RPM, considering I have a 4.10 axle ratio, that would put me w/ a 50:1 overall ratio. At 3000 / 50 puts me at exactly 60 RPM, or 1 revolution per second (perhaps 2 if one wheel is spinning, but w/ the traction control, I doubt it would hit that). Just in visualizing 1 revolution per second (computes to 5 mph) on loose dirt doesn't give me the impression of excessive wheel spin.
#20
Sorry, but I don't see or hear any indication of an axle/u-joint breaking in that video. The backlash is normal and existed in previous models so it's completely unrelated an not to blame. Have you ever heard a u-joint snap? It's not something you would wonder about and have to analyze to figure when it happened. It sounds like a gun shot really and would have been very audible in that video. If I was your dealer I'd be suspicious of your story - just does not seem plausible given the way you were driving in the video.