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Old 08-24-2014, 09:11 PM   #1
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Have an 05 LJ (auto, 33s) w/ d44 in rear and its time to regear to 4.88.

I finally found a hp30 locally to build and swap but after more thinking im second guessing myself. I wheel it around here in FL twice/mo and daily drive it.

Do i build this hp30 (regear to 4.88, new balljoints, timken hubs, seals, axle tube seals, new uca bushings, HD lca brackets/skids, add aussie locker) and spend the $1k total for this build and swap over my axle shafts & upgraded brakes?

I dont know how to weld and going with a waggy44 sounds like biting off more than i can chew with narrowing, having a buddy weld everything, dealing with not having my 5x4.5 boly pattern and not wanting to replace all my wheels for the new bolt pattern.

And a hp44 currie rockjock would put me at $3k by the time i add the mounts, gears & locker.

Whatcha think? Im supposed to pick this hp30 this week.

I will be doing control arms and tummy tuck next.

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Old 08-24-2014, 09:31 PM   #2
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I went to a HPD30 for a few reasons, one was price, I got a good deal, the main reason is that you gain a lot of strength having the pinion at the top of the ring gear, and you also get more ground clearance for your front drive shaft, mine was hitting constantly.

Ball joints are not expensive, and I used the Currie Johnny Joint mounts, you do have to get the reverse cut ring & pinion, just order it for the XJ and your good. When I did the front axle build, gears, ball joints and unit bearings. It's nice to have the piece of mind knowing it's all new and in good condition.

And of course, you get a nice axle to show off -

When I got the axle it looked awful -


A lot of cleaning and work later -

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Old 08-24-2014, 10:00 PM   #3
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Good to know...just wasnt sure if i needed to add this and that. My lp30 has held up this far but since i need to regear i felt i would throw in a hp30 while im at it
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Old 08-24-2014, 10:35 PM   #4
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If you can get a good deal on one, I paid $100 delivered for mine, and was about to do all the work anyway, so it was a no brainer for me. I like it enough that this winter I'm going to put an Iron Rock Offroad truss on it, sleeves, gussets and new lower control arm mounts.

The Johnny Joint upper mounts are easy to do, I welded my passenger side in with the kit, but Blaine had a good idea about using the press in joints on both sides, and if he says it works it must be solid.

Just add some alloy shafts and u-joints while your in there and it'll be pretty bullet proof.
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Old 08-24-2014, 10:47 PM   #5
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Quote:
Originally Posted by O_M_Jeep View Post
but Blaine had a good idea about using the press in joints on both sides, and if he says it works it must be solid.
I've done about 10 this way and so far, not a single issue.

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Old 08-25-2014, 06:21 AM   #6
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I did mine the old fashioned way, wish I had known I could do that, it looks much better than the way Currie envisions it.


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