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Old 04-18-2011, 09:25 AM   #31
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Originally Posted by Wrangler97-EEK View Post
The joint usually fails which in turn causes damage to the ears on shafts.
That's not the usual order of breakage though some think it is. What really happens is the ears stretch and fail first from the u-joint pulling against them which releases the u-joint to spin free and collide with the ears. That is what causes the u-joint to break. The u-joint itself doesn't usually fail first.

If your friends are breaking "chromolly" axleshafts then they are likely off-brand imports or Mosers which don't have hardened ears. Good quality hardened alloy/chromolly shafts like the Evolution Series from Superior Axle don't break except very rarely like on extreme level trails like the Hammers in Johnson Valley. As I said, once I went with good quality Warn and Superior Axle hardened shafts, broken axle shafts became something of the past and I doubt you're seeing the level of difficulty there we commonly encounter here in our local desert rock crawling trails like out in Johnson Valley.

Once you get good quality hardened axle shafts like the Evolution Series from Superior and good u-joints installed, you won't have breakage issues again. These shafts hold up to the toughest trails in Johnson Valley where the final championship rock crawling events are held, plus the notoriously tough King of the Hammers series.

RCV's axles are excellent quality and they are strong, my entire point is that hardened chromolly shafts don't break "all the time" as you claimed above. Even your favored RCVs are made from chromolly steel, check their website.

And you are confused on chromolly axle shafts... you have said the "stock type chromolly shafts" and "chromoly axles that do break quite often" but the stock axle shafts are NOT chromolly. The stock shafts installed by Dana are carbon steel (not the same as chromolly) which ARE known to break. Even the RCV shafts you are pushing are made from chromolly. The shafts that break more easily which the factory installs are carbon steel, NOT chromolly or hardened alloy.

So, again, good quality aftermarket hardened alloy chromolly shafts do not "break all the time" and it doesn't take an RCV axle to prevent axle shaft breakages that are only common if you do the really tough trails and are still on the factory carbon steel axle shafts.

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Old 04-19-2011, 12:16 PM   #32
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I understand stock axles are not chromoly, only used as a reference to the u-joint style instead of cv style from rcv. as for what brand of chromoly axles thay had, I think they were yukon maybe. Could have been just some bad axles who knows. I only said I have seen them break quite often.

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Old 04-20-2011, 07:55 PM   #33
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After reading this thread, so glad I chose these:
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Old 04-20-2011, 08:57 PM   #34
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Nice stuff there, good choice of Superior Axle! Were you aware your ECTED locker is clutch based and once its clutch pack wears out it has to go back to the factory to be rebuilt?
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Old 04-20-2011, 09:57 PM   #35
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not tryin to hijack but i have a few ?'s myself. i have the dana 35 in my jeep and have been looking at the axle shaft upgrade vs the swap. now here is my ?'s

if i already have a ford 8.8 how much would it cost to get the fab work done to bolt in my tj?

is it really worth the cost of getin the axle, fabing it, then geting it put in or just get the shaft upgrade for the $
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Old 04-20-2011, 11:16 PM   #36
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Quote:
Originally Posted by 05wrangler
not tryin to hijack but i have a few ?'s myself. i have the dana 35 in my jeep and have been looking at the axle shaft upgrade vs the swap. now here is my ?'s

if i already have a ford 8.8 how much would it cost to get the fab work done to bolt in my tj?

is it really worth the cost of getin the axle, fabing it, then geting it put in or just get the shaft upgrade for the $
It really depends on how much of the work you are able to do yourself.
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Old 04-21-2011, 05:30 AM   #37
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Nice stuff there, good choice of Superior Axle! Were you aware your ECTED locker is clutch based and once its clutch pack wears out it has to go back to the factory to be rebuilt?
Yes. A lot of folks wear these out quicker than normal because they don't lock the differential when they should - they leave it in the LSD mode while wheeling, which greatly reduces the life of the clutch packs inside the diff.

I rarely do any crawling or hardcore wheeling, mostly beach and trail riding. Combine that with the exchange program Auburn offers with this diff, and I should get more than a few good years out of it.
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Old 04-21-2011, 11:49 AM   #38
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Understand but its clutch gets used even in daily driving because its LSD is always in operation. That's why the clutch pack inside the Tracloc rarely makes it past 40-50k miles, because the clutches are continually slipping against when making turns and even when driving on a curved highway.
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Old 04-21-2011, 02:18 PM   #39
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I drive my jeep less than 3,000mi/yr. At that rate, I've got a good 13-16yrs to go with this unit.

I know not everyone likes them, but this combo of parts made the most sense for the kind of driving and wheeling I do.
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Old 04-21-2011, 08:35 PM   #40
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It really depends on how much of the work you are able to do yourself.
i would be able to install the axle but not fab it to fit. i could also install the shafts if i went that way. so is it work the money for the swap or the shafts?
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Old 04-21-2011, 08:45 PM   #41
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i would be able to install the axle but not fab it to fit. i could also install the shafts if i went that way. so is it work the money for the swap or the shafts?
since you already have the 8.8 I would go with it.
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Old 04-21-2011, 09:02 PM   #42
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Those are all childs play...you are only serious if you are running 2.5 Rockwell axles.
Can you say six gallons a mile??? I had a friend that put "rockwells" on his mud truck. Actually he put riddler covers and roughy I was dumb enough to think the big r meant rockwell
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Old 04-21-2011, 09:03 PM   #43
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I think I'm gonna get them and run a 6bt or maybe just a tractor motor haha
Cummins 4bt. Dooooo it. I'll come help.
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Old 04-21-2011, 09:48 PM   #44
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Cummins 4bt. Dooooo it. I'll come help.
With that big of an axle I need the 6 lol. But that would be fun bring a welder haha

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