WJ Dana 30 vs JK Dana 30.. axle tube diameters and Inner C sizes??? - Page 2 - JeepForum.com
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Unread 04-18-2011, 09:01 AM   #16
grin
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virtually no modifications -- the sway bar mount (passenger side) takes some work, and I raised my trac-bar mount, but that may or may not be necessary if you use the stock steering configuration (I raised the draglink OTK).

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Unread 04-18-2011, 09:27 AM   #17
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Quote:
Originally Posted by MEinSoCal View Post
i'm in the same situation. just found out my D30 is bent after a complete full front end overhaul -- 4.56 gear, OTK steering, drag flip, IRO sleeves, dual stablizers, etc. With all that i've invested, for now i'll probably just go the same route and pick up another D30 housing, then truss the hell out of it.

how much did it run you to straighten out your axle?
I did it myself. I bought some chain with hooks at harbor freight, and used a bottle jack, and a oxy-actelene torch to heat it up, and bend it back. I put chains around the ends of the axle, ran underneath the bottle jack, and heated up the axle tube, and jacked it straight. I put 2 angle finders on the discs, and kept going until it was straight.

Here is a pic:


Quote:
Originally Posted by FirefightinWJ View Post
So...if I'm reading this correct...the HP Dana 30 out of a JK will bolt in with no modifications?

I can deal with bowed coil springs as dealing with that is minor.
I am pretty sure its wider than the WJ axle, so your tires will stick out further.. but from what these guys are saying, yeah.

G-
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Unread 04-18-2011, 09:38 AM   #18
grin
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its only an inch wider -- WJ's are 63.5" WMS to WMS, JK's are 64.5. You won't even notice the difference.
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Unread 04-18-2011, 09:40 AM   #19
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Quote:
Originally Posted by grin View Post
virtually no modifications -- the sway bar mount (passenger side) takes some work, and I raised my trac-bar mount, but that may or may not be necessary if you use the stock steering configuration (I raised the draglink OTK).
Thanks for the info.

I'd strongly consider going this route if I knew the track bar would fit with no modifications. IIRC, I wouldn't be running OTK steering.
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Unread 04-18-2011, 09:42 AM   #20
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I can't confirm that, as I think the JK tracbar is actually slightly shorter than a stock WJ... might work, might be close, IDK.
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Unread 04-18-2011, 10:03 AM   #21
FirefightinWJ
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Originally Posted by LSRGreg View Post
I did it myself. I bought some chain with hooks at harbor freight, and used a bottle jack, and a oxy-actelene torch to heat it up, and bend it back. I put chains around the ends of the axle, ran underneath the bottle jack, and heated up the axle tube, and jacked it straight. I put 2 angle finders on the discs, and kept going until it was straight.

Here is a pic:




I am pretty sure its wider than the WJ axle, so your tires will stick out further.. but from what these guys are saying, yeah.

G-
I'm ok with the width...I run 1.5" spacers right now so I'd just ditch the spacers in the front if I upgraded to JK axle. I'm still trying to search around for a definite answer as to whether it can be installed without fabrication.
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Unread 04-18-2011, 05:18 PM   #22
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How do they compare strength wise???
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Unread 04-21-2011, 09:54 PM   #23
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Originally Posted by grin View Post
ya know the JK D30's are a dime a dozen for the guys swapping them out, and have 32-spline outers. They are virtually bolt-in in a WJ, with only 1" additional width, and a slight bowing of the springs like this: / \ . Plus they're high pinion, giving you some additional r&p strength over the WJ version -- the only mod I made to mine bolting it in was to elevate the tracbar mount (and brakelines). I'd find a JK30, sleeve and gusset it, and wheel the crap out of it, especially since you say you already bent your WJ housing...
do you have any pics of your JK D30 under your WJ? i also want to see any modifications you've made
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Unread 04-22-2011, 08:50 AM   #24
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A few... straight on, from the front:



I used some angle iron to turn the passenger-side sway disco 90*, but its a design that I'm still working on, as it tends to want to bend a bit under load... you can see the track bar bracket fabbed from 1/4-wall 2x4, and mounted on top of the stock track bar location in this pic as well:


You can see the OTK draglink in the a couple of those photos as well -- works great!
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Unread 04-22-2011, 04:46 PM   #25
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grin, does your ABS still work up front? i'm assuming you're running a rough country dual steering stabilizer setup? thanks for the pics by the way, looks good
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Unread 04-22-2011, 05:50 PM   #26
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Unread 04-22-2011, 06:01 PM   #27
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I'm sure IRO's option is good, but most here don't have or aren't willing to pay $5K for just a front axle!
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Unread 04-22-2011, 07:09 PM   #28
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grin, does your ABS still work up front? i'm assuming you're running a rough country dual steering stabilizer setup? thanks for the pics by the way, looks good
I bypassed ABS altogether - I hate ABS, plus the JK uses a different tone ring count than the WJ, so it just wasn't worth the effort to keep it even if I wanted to.

I am running an ancient Rancho single stabilizer that once lived on my XJ (in the 90's )... I have a newer one but since this one is working, I haven't got around to putting it on. I went 10 years on the XJ without a stabilizer at all and never missed it - if your steering is dialed in and the parts are in good shape, IMHO it isn't necessary.

The pre-built IRO axles are great, but since I have a grand total of $1400 in both my front JK 30 and my elocked JK44 rear, the $5k price tag at IRO is a bit shocking...
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Unread 06-27-2011, 04:21 PM   #29
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Awesome thanks, Do you have any pic on the front end changes you made?

I think this will be the route I go
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Unread 06-27-2011, 06:17 PM   #30
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Iro makes some nice wj d30 strength upgrades
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