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Old 02-12-2011, 11:19 PM   #1
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Going to regear and add lockers, should I upgrade my axleshafts right away also?

So I finally have all the bills paid off, and my wife has agreed I can spend money on my jeep - I will be regearing and adding ARB airlockers front and rear. I have a Dana 30 up front and a Dana 44 in the rear.

Should I bite the bullet and just upgrade my front Dana 30 axleshafts at the same time? Theres about a 95% chance that 33s are the largest tire I will ever go with.

If I am going to upgrade the axleshafts, it seems that I should probably do it at the same time as adding the ARB airlocker in the front, since the stock axleshafts are (i believe) 27 spline and all of the upgraded aftermarket axleshafts are 30 spline. Thus I need to buy the right spline-count locker the first time.

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Old 02-12-2011, 11:26 PM   #2
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If you are going to all the trouble of rebuilding the axles with new lockers and gears, get the shafts to compliment it all.

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Old 02-12-2011, 11:29 PM   #3
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Any idea how much more thats going to cost me? And how much stronger a set of aftermarket axleshafts are? 50% stronger? twice as strong?
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Old 02-12-2011, 11:35 PM   #4
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Depends on the shafts you get.

You can get Alloy USA chromoly shafts which as said to be 30-40% stronger, which will run between $500-$800.
Of course they will have 30 spline inner shafts, and can come with 27 spline outter (stock) or upgraded 30 spline outter, but you need to buy the upgraded hub bearing as well.

Or you can get RCV CV shafts, which are even better... but you'll break ring gears before the shaft. I'd much rather replace a shaft than gears though IMO.
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Old 02-12-2011, 11:42 PM   #5
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So you can get them with 27 splines? (stock)

If so, I might just wait to upgrade the axles then. I'm already over my wife allocated budget Explaining why i NEED to spend another 500-800 would be a very much uphill battle..
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Old 02-12-2011, 11:47 PM   #6
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ARB's are only available with 30 spline... the 27 spline I was referring to is the outer stub shaft in the hub unit bearing. So with ARB's & Alloy USA chromoly shafts, you'd need the D30 30/27 spline w/ ARB kit... not the D30 30/30 kit.
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Old 02-13-2011, 12:13 AM   #7
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Old 02-13-2011, 10:03 PM   #8
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I would upgrade the D30 shafts to Alloys for sure. If you honestly do not think you will ever go with tires larger than 33"(yeah right!), then stick with the 27 spline. If you know you are just fooling yourself, then either go with the Super 30 kit or get RCV shafts. RCVs are about $1K, but a good set of alloys with a good chromo joint will run you about $800. RCV also has a "you break it we replace it" warranty.
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Old 02-13-2011, 10:11 PM   #9
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Originally Posted by netlohcs View Post
Not to prove you wrong, but I guess I dont quite understand then?
Yes the ARB is available with 27 splines... but get the 30 spline.

The 30/27 I was referring to was the outer spline hub count. You can upgrade those to 30 as well, but if you are sticking with the 33's like you say, stick with stock hubs.

Like Lance said, the RCV is pricey, but if you can break them, they will replace them... but they won't replace your busted pinion or ring gears.
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Old 02-13-2011, 10:12 PM   #10
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What size tires will you be running? You can go with hardened alloy shafts for the front Dana 30 but you can stay with 27 splines which will hold up fine with 35" tires and the locker. I really don't see much benefit to alloy 30 spline front shafts since hardened alloy 27 spline shafts hold up to anything the Dana 30 is up to which is a 35" tire. I've run a lot of tough trails like out in Johnson Valley with Warn's hardened alloy 27 spline shafts and hubs with 35" tires and a locker in my former Dana 30 front axle without problem.

The rear carbon steel shafts are fine for most people with a locker and 35" tires but if you're an aggressive driver, I'd upgrade them to 30 spline alloy shafts like the Evolution Series from Superior Axle. I twisted my carbon steel 30 spline D44 shafts pretty good with 35" tires and a Detroit Locker, that's when I upgraded to alloy shafts in the rear.
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Old 02-13-2011, 10:19 PM   #11
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Jerry - that pretty much answers my question. If they make a good hardened alloy 27 spline shaft that I can upgrade to later, i will probably just do that. Its not really in my budget to add another $1K onto my already a little-too-expensive (according to my wife) regear and selectable locker install. Knowing that I can upgrade in the future without kicking myself for not getting the 30 spline ARB locker is good news.
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Old 02-13-2011, 10:29 PM   #12
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Quote:
Originally Posted by netlohcs
So I finally have all the bills paid off, and my wife has agreed I can spend money on my jeep - I will be regearing and adding ARB airlockers front and rear. I have a Dana 30 up front and a Dana 44 in the rear.

Should I bite the bullet and just upgrade my front Dana 30 axleshafts at the same time? Theres about a 95% chance that 33s are the largest tire I will ever go with.

If I am going to upgrade the axleshafts, it seems that I should probably do it at the same time as adding the ARB airlocker in the front, since the stock axleshafts are (i believe) 27 spline and all of the upgraded aftermarket axleshafts are 30 spline. Thus I need to buy the right spline-count locker the first time.
RCV shafts are available in 27 spline for the D30
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Old 02-14-2011, 12:19 AM   #13
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I'd vote for a Super 44 (->Click here<-) and a Super 30 (->Click Here<-).

Considering that ARB Lockers are over $900/ea, for a couple hundred more you can get better shafts in the process.

Did this with my D30/D35 in the past, ran 35's, and beat the hell outta it with zero problems.
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Old 02-15-2011, 01:14 PM   #14
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Originally Posted by netlohcs View Post
Jerry - that pretty much answers my question. If they make a good hardened alloy 27 spline shaft that I can upgrade to later, i will probably just do that. Its not really in my budget to add another $1K onto my already a little-too-expensive (according to my wife) regear and selectable locker install. Knowing that I can upgrade in the future without kicking myself for not getting the 30 spline ARB locker is good news.
So you are getting 27 spline chromos, right? What are you going to do for joints? I have seen too many Spicer joints break and take out the ears on a set of $500 shafts, once on both axles within 1 second of each other! I would suggest some good joints too. Like the Yukon Super Joints, Excalibers, Longfields, CTMs, etc. But......then you are adding another $300 or so to you bill. Now you are around $800 or so, and might want to consider RCVs. Oh, the joys of a build budget.
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Old 02-15-2011, 11:07 PM   #15
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I'd vote for a Super 44 (->Click here<-) and a Super 30 (->Click Here<-).

Considering that ARB Lockers are over $900/ea, for a couple hundred more you can get better shafts in the process.

Did this with my D30/D35 in the past, ran 35's, and beat the hell outta it with zero problems.
I clicked on the first link (for the 44) and was suprised how (relatively) affordable that kit is. Only say 250 more. Then I clicked on the one for the D30. That one is a lot more

I really dont plan on wheeling my jeep very hard (I know i know, thats what everyone says at first, but i really mean it!! ) And like i said, Im already feeling a little guilty about how much im spending just on the lockers. I think upgrading the axles is going to have to wait until i really know my true needs more - and have more money.

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