Rear JK Dana 44 strengthening - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 15 Old 01-06-2012, 11:04 PM Thread Starter
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Rear JK Dana 44 strengthening

Wondering is anyone has good/easy solutions for beefing up the rear housing strength?

Front is taken care of but want to keep the rear straight.
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post #2 of 15 Old 01-06-2012, 11:41 PM
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The rear is quite a bit stronger than the front. You have to wheel pretty hard to bust it up (which I've done but that had more to do with my stock driveshafts than the axle itself). I've heard of guys putting trusses back there (something I'm considering doing) but I think most guys that want to "beef up" the rear just end up swapping in a stronger axle... Other's will chime in too with their personal experiences but that's ^ mine!

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post #3 of 15 Old 01-07-2012, 12:14 AM
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Quote:
Originally Posted by hotrodtinker View Post
The rear is quite a bit stronger than the front. You have to wheel pretty hard to bust it up (which I've done but that had more to do with my stock driveshafts than the axle itself). I've heard of guys putting trusses back there (something I'm considering doing) but I think most guys that want to "beef up" the rear just end up swapping in a stronger axle... Other's will chime in too with their personal experiences but that's ^ mine!
How is the rear stronger when it has the same tubes as the D30?

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post #4 of 15 Old 01-07-2012, 06:08 AM
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Quote:
Originally Posted by captjay View Post
How is the rear stronger when it has the same tubes as the D30?
It doesn't have d30 size tubes
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post #5 of 15 Old 01-07-2012, 06:42 AM
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We tied in a 2x3" truss and welded everything up includ the Poly track-bar mount. Had I not previously bent the orig rear axle, than I wouldn't have done all this. Added piece of mind now.
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post #6 of 15 Old 01-07-2012, 07:18 AM
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Quote:
Originally Posted by captjay View Post
How is the rear stronger when it has the same tubes as the D30?
I could be wrong but I'm fairly certain the rear D44 is quite a bit thicker than the front D30/D44 with specs for both running something like below... If anyone can dispute this I'd like to hear it (I hate spouting off false information).

JK rear D44: 2.75" X 0.375 wall DOM tubes

JK front D30: 2.50" X 0.250 wall DOM tubes

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post #7 of 15 Old 01-07-2012, 07:27 AM
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Quote:
Originally Posted by hotrodtinker View Post
I could be wrong but I'm fairly certain the rear D44 is quite a bit thicker than the front D30/D44 with specs for both running something like below... If anyone can dispute this I'd like to hear it (I hate spouting off false information).

JK rear D44: 2.75" X 0.375 wall DOM tubes

JK front D30: 2.50" X 0.250 wall DOM tubes
well I'm glad I asked. I had been told for a long time that the D30 and D44 tubes were same. Thanks for posting the specs.

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post #8 of 15 Old 01-07-2012, 07:40 AM
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Quote:
Originally Posted by hotrodtinker View Post
I could be wrong but I'm fairly certain the rear D44 is quite a bit thicker than the front D30/D44 with specs for both running something like below... If anyone can dispute this I'd like to hear it (I hate spouting off false information).

JK rear D44: 2.75" X 0.375 wall DOM tubes

JK front D30: 2.50" X 0.250 wall DOM tubes
this is what sucks about forums sometimes, bad info. Not saying you or I have put out bad info but I am reading on other forums that the tubes are same size. Sooooo what are we suppose to believe? Most of us only have these forums to turn to for info and hope that it's correct. I'm still digging because I'm like you, I don't want to put out false info.

I finally ditched that "other" forum
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post #9 of 15 Old 01-07-2012, 07:40 AM
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I believe they are for the front axles. That's the great thing about this forum; we all learn new things!

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post #10 of 15 Old 01-07-2012, 07:49 AM
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OP: Here's a previous thread started by someone else: https://www.jkowners.com/forum/showthread.php?t=52539

And here's one of the prefabbed truss' for the rear I've found online: http://artecindustries.3dcartstores....ss-_p_160.html

I don't know anything about the company but the truss looks well built. Me personally? I'm having a local shop throw on some metal for me when I get my gears and shit done (they specialize in trussing rear axles for drag racers so it should do me fine for now). Keep in mind I drive like an asshole offroad and am known for fuckin my shit up on the reg.

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post #11 of 15 Old 01-07-2012, 08:53 AM
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Quote:
Originally Posted by captjay View Post
this is what sucks about forums sometimes, bad info. Not saying you or I have put out bad info but I am reading on other forums that the tubes are same size. Sooooo what are we suppose to believe? Most of us only have these forums to turn to for info and hope that it's correct. I'm still digging because I'm like you, I don't want to put out false info.
The front 44 has the same tubes as a front 30.
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post #12 of 15 Old 01-07-2012, 08:56 AM
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Quote:
Originally Posted by captjay View Post
this is what sucks about forums sometimes, bad info. Not saying you or I have put out bad info but I am reading on other forums that the tubes are same size. Sooooo what are we suppose to believe? Most of us only have these forums to turn to for info and hope that it's correct. I'm still digging because I'm like you, I don't want to put out false info.
They are the same tubes, on the front jk axles. Rear axles and fronts are a whole different animal.
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post #13 of 15 Old 01-07-2012, 09:19 AM
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Thanks for clearing that up guys

I finally ditched that "other" forum
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post #14 of 15 Old 01-07-2012, 01:26 PM
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When I had the gears installed in my 2011 Rubicon, there was evidence that the rear axle tubes had flexed or moved within the pumpkin. Keep in mind, that was with 19,000 miles and three major 'wheeling trips (one to Moab, two to CO). The carrier bearing surfaces were discolored from heat, and the axle tubes weren't completely flush with the diff housing. SO, I had a truss fabbed and installed. It's welded on both sides of the tubes, and to the top of the pumpkin. Also had the tubes welded to the pumpkin. Finally, I've got LCA skids welded in, and reinforcement added to the axle-side track bar mount.

1997 TJ with LOTS of stuff.
2011 2DR Rubicon with stuff.
2012 JK8 with some stuff.
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post #15 of 15 Old 01-07-2012, 01:37 PM
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Quote:
Originally Posted by Nycauburn View Post
They are the same tubes, on the front jk axles. Rear axles and fronts are a whole different animal.
This.....

The front 30s and 44s houseings are identicle from the tubes to the Cs but the center section of the 44 is larger to accomodate the larger ring and pinion.

The rear 44s are the ones that are thicker walled tubes.

Jersey

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