D30??
11-09-2009, 03:54 PM
#11
JK Enthusiast
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I was just out crawling up some ledges. I put my stock set up through the same scenario and scattered the spider gears. This episode, ya I broke 3 of the 4 front axles, carrier and the driver carrier bearing. You can see the piece of the axle stuck in the carrier stuck in the locker. Supposedly the weak link, gears and u joints are fine. Go figure. 
11-09-2009, 04:06 PM
#12
JK Super Freak
Did you "crawl" up the ledge or did you "hit" it. I'm shocked to see that kind of damage on a built up D30 if you eased up the ledge. I was looking to build up my D30 but not if it'll end up braking that easily.
11-09-2009, 04:37 PM
#13
JK Freak
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Just dropped big bucks into my D 30 and within 2 hours I totalled it.
https://www.jk-forum.com/forums/members/ctnedge-22384-albums-axle-carnage-2683/
I have a lunch box in it (had) broke the chromoly axles in 3 places leaving the splines stuck in the Aussie which is now stuck in the carrier which is also destroyed along with the carrier bearing. I'm gonna build a dynatrac 44 with 44 cv axles, gears and a rubi locker since thats the carrier and then I can finish it off with my D 30 brakes etc.
Good luck with that D 30!
https://www.jk-forum.com/forums/members/ctnedge-22384-albums-axle-carnage-2683/
I have a lunch box in it (had) broke the chromoly axles in 3 places leaving the splines stuck in the Aussie which is now stuck in the carrier which is also destroyed along with the carrier bearing. I'm gonna build a dynatrac 44 with 44 cv axles, gears and a rubi locker since thats the carrier and then I can finish it off with my D 30 brakes etc.
Good luck with that D 30!
11-09-2009, 04:58 PM
#14
JK Junkie
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I don't understand what you guys are doing with your JKs. There's a dozen Jeeps in my club running a D30 up front with 4.56+ R&P and Detroits on 35s-37s and NOTHING for YEARS and YEARS of hard wheeling. I'm pretty sure some of these guys blowing up JK 30s are just gunning it or hitting it hard at every obstacle. I'm so surprised the JK D30 are grenading the way they do yet are built stronger than the older D30s from the CJ to TJ line.
11-09-2009, 05:28 PM
#15
JK Jedi Master
I was just out crawling up some ledges. I put my stock set up through the same scenario and scattered the spider gears. This episode, ya I broke 3 of the 4 front axles, carrier and the driver carrier bearing. You can see the piece of the axle stuck in the carrier stuck in the locker. Supposedly the weak link, gears and u joints are fine. Go figure.
11-09-2009, 05:50 PM
#16
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Both fronts have 2 axles joined by a u joint. The axles were chromoly whatevers, I forgot the brand name. The obstacles were climbed properly both with the stock shafts as well as the chromoly's and I still have the stocks in good shape. Massive chromoly failure is the culprit here I believe. I'm no jeep engineer but weren't the cj's etc quite a bit lighter? I never had problem one with my last jeep in the same situations. D 30's are built for street use and mild trails which is why there is 1000 threads on axle upgrades and massive failures on this and many other forums.
11-09-2009, 06:12 PM
#17
JK Jedi Master
Axle and stub shaft, you broke the ears on the stub shaft at the joint and also internally on the axle shaft itself? Hell, I'll stick with stockers then, I got extras. Chromo overated. Same thing kinda happened in my cj rear , spun the splines on a hub, went ahead and put a chromo in with a new hub and snapped it within a week
Put the stocker back in and just went through hubs after that.
Put the stocker back in and just went through hubs after that.
11-09-2009, 06:17 PM
#18
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Ya the splines on both internals and sheared the spline off at the hub. I'm with you on the chromoly. I hear the RCV shafts are damn tough. Ought to be at $1k!
11-09-2009, 06:52 PM
#19
JK Jedi Master
Yeah, I'm debating on those right now. Depends on what I break in the d-30 as to which direction I'm going, I've got some spare stockers, and a lockright in the front. If I screw the R&P or carrier, I'm goin d-60, if it's just axles , may go rcv. We don't have allotta rocks here, just muddy trails, so.... I actually hammered them pretty good yesterday on a trail, so far, so good, not rocks though, think that's where I'd run into probs.